The following transactions occurred during July: Received $1,600 cash for services performed during July. Received $7,800 cash from the issuance of common stock to owners. Received $800 from a customer as payment for services performed during June. Billed $4,700 to customers for services performed on account in July. Borrowed $3,300 from the bank and signed a promissory note. Received $2,200 from a customer for services to be performed during August. What is the amount of revenue that will be reported on the income statement for the month ended July 31

Wo firms, a and b, each currently dump 50 tons of chemicals into the local river. the government has decided to reduce the pollution and from now on will require a pollution permit for each ton of pollution dumped into the river. it costs firm a $100 for each ton of pollution that it eliminates before it reaches the river, and it costs firm b $50 for each ton of pollution that it eliminates before it reaches the river. the government gives each firm 20 pollution permits. government officials are not sure whether to allow the firms to buy or sell the pollution permits to each other. what is the total cost of reducing pollution if firms are not allowed to buy and sell pollution permits from each other? what is the total cost of reducing pollution if the firms are allowed to buy and sell permits from each other? a. $3,000; $1,500 b. $4,500; $3,500 c. $4,500; $4,000 d. $4,500; $2,500