Need help please thank you

Tina practice piano for 15 hours last month and 45 hours this month use multiplication to write a statement comparing me i was tina practice during the two months use addition to write a statement comparing the hours tina practice during the two months

A(t)=728(1+0.04)^t how much money did aditya originally invest

Which of the symbols correctly relates the two numbers below check all that apply 6? 6