Nina’s grandmother deposits $3,000 into a savings account for her. The account pays 5.5% simple interest on an annual basis. If she does not add or withdraw money from the account, how much interest will she earn after 21 months? Round to the nearest cent.

1jessica's home town is a mid-sized city experiencing a decline in population. the following graph models the estimated population if the decline continues at the same rate. select the most appropriate unit for the measure of time that the graph represents. a. years b. hours c. days d. weeks

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2

Perry observes the opposite parallel walls of a room in how many lines do the plains containing the walls intersect