Supply curves slope upward as prices increase because:

a. producers will manufacture more units for a larger per-unit price.
b. none of the answers listed
c. consumers will demand more
d. producers’ costs do not change over the short-term
e. producers will make fewer units for a larger per-unit price.

Aretha wanted to gather data about the cost of local bowling leagues in her area. she plotted the data and determined that the average bowling league costs consist of a one-time registration fee and a monthly fee modeled by the equation y = 15x + 20. identify and interpret the y-intercept in this model. the y-intercept is 20. this is the cost per month. the y-intercept is 20. this is the cost of registration. the y-intercept is 15. this is the cost of registration. the y-intercept is 15. this is the cost per month.

Diane’s bank is offering 5% interest, compounded monthly. if diane invests $10,500 and wants $20,000 when she withdrawals, how long should she keep her money in for? round to the nearest tenth of a year.

Ithink i know it but i want to be sure so can you me out ?