Please help me I will give you the briain thing and extra points. (image below) 10/13

Hillel is juggling flaming torches to raise money for charity. his initial appearance raises $500\$500 $500 , and he raises $15\$15 $15 for each minute of juggling performance. the amount rr r of money hillel raises is a function of tt t , the length of his performance in minutes. write the function's formula.

How to do this , and can some one explain

You deposit $5000 each year into an account earning 3% interest compounded annually. how much will you have in the account in 30 years?