Please help i need this for my diagnostic

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.

How many grams the dog will eat in 3 days?

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)