Im super confused on how to do this. jamie has $500 to invest for 3 years. she finds a bank that will invest her money at a simple interest rate of 5%. interest is t is equal to the principle p times the product of the rate r as a decimal and the time d in years. find the amount of interest earned after 3 years.

Sarah is collecting recyclables for a science project. on the first day she collected 35 recyclable objects. on the second day she had a total of 52 recyclables. on the third day she had a total of 69 recyclables. determine if the scenario describes an arithmetic or a geometric sequence. then, write the recursive formula for the sequence described.