ONE QUESTION!! I NEED HELP! WHICH ONE IS IT? (1,2,3,4)

Acredit card advertises an annual interest rate of 23%. what is the equivalent monthly interest rate?

The u-drive rent-a-truck company plans to spend $13 million on 320 new vehicles. each commercial van will cost $25 comma 000, each small truck $50 comma 000, and each large truck  $80 comma 000. past experience shows that they need twice as many vans as small trucks. how many of each type of vehicle can they buy?

How many terms does the polynomial x^2 y^2 have