Alan is 8 years old than jon. If Alan is 21 years old, how old is Jon?​

Hello people, i have a math question that i need with, me, i will give the correct one brainiest, and for the other correct people, a and 5 stars.

The expression 1.01*1.005(^t) gives the amount of money, in thousands of dollars, in carter's savings account (t) years after he opens it. what does 1.01 represent in this expression?

What is the inverse of the function f(x) = 2x + 1?