What is 12x12 need help cause i'm in third grade

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.

Rectangle leg this 11feet and perimeter of 38feet what is the width of the rectangle in feet

An ant travels at a constant rate of 30cm every 2 minutes.at what speed does the ant travel per minute