Prepare the adjusting entries on january 31. (omit explanations.) account titles are accumulated depreciation—equipment, depreciation expense, service revenue, accounts receivable, insurance expense, interest expense, interest payable, prepaid insurance, supplies, supplies expense, utilities expenses, and accounts payable. e3.7 (lo 3) (analyze adjusted data) a partial adjusted trial balance of piper company at january 31, 2020, shows the following. piper company adjusted trial balance january 31, 2020 debit credit supplies $ 700 prepaid insurance 2,400 salaries and wages payable $ 800 unearned service revenue 750 supplies expense 950 insurance expense 400 salaries and wages expense 1,800 service revenue 2,000 instructions answer the following questions, assuming the year begins january 1.
a. if the amount in supplies expense is the january 31 adjusting entry, and $850 of supplies was purchased in january, what was the balance in supplies on january 1?
b. if the amount in insurance expense is the january 31 adjusting entry, and the original insurance premium was for one year, what was the total premium and when was the policy purchased?
c. if $2,500 of salaries was paid in january, what was the balance in salaries and wages payable at december 31, 2019?
d. if $1,600 was received in january for services performed in january, what was the balance in unearned service revenue at december 31, 2019?

2. the external environment (connect)choose whether each example belongs in the general, task, or internal environment.exampleenvironmenta worldwide recession task environment / general environment / internal environmentlocal mothers asking their community grocery store to carry no-salt cheerios-type cereal for their babies task environment / general environment / internal environmentchoose the phrase that best completes the following sentence.the relationship between the task environment and the general environment is best described as: a one-way system: changes in the task environment affect the general environment, but changes in the general environment do not affect the task environment.an open system: changes in the task environment affect the general environment, and changes in the general environment affect the task environment.a one-way system: changes in the general environment affect the task environment, but changes in the task environment do not affect the general environment.a closed system: changes in the general environment do not affect the task environment, and changes in the task environment do not affect the general environment.©bloomberg via getty imagesmanagement in the newsin april 2010, the explosion of british petroleum’s (bp) deepwater horizon oil drilling rig and the accompanying oil spill dramatically changed the external environment in which all oil companies operate. the explosion released more oil than any other accidental spill in history and had a huge impact on the waters and surrounding communities of the gulf coast. the conditions that led to the spill, the attempts to stop the spill, and the clean-up and aftermath of the spill prompted debates in the u.s. senate, concern on wall street, and attention from companies all over the world.match each oil spill event with a specific dimension of the general environment.eventgeneral environment dimensionbp stock prices falling 25% during the first month after the oil spill oil seeping into pelican nesting grounds, which will place the brown pelican back on the endangered species list people moving from louisiana to oklahoma to avoid the effects of the spill