Help me please with math

The amount of money, in dollars, in an account after t years is given by a = 1000(1.03)^t. the initial deposit into the account was $_^a0 and the interest rate was _a1% per year. only enter numbers in the boxes. do not include any commas or decimal points^t. the initial deposit into the account was $__^a0 and the interest rate is % per year.

Find the value of the variable and the length of each secant segment.

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?