Need help completing this, please show all workings.

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.

0if x and y vary inversely and y=6 as x=7, what is the constant of variation?

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2