Help please is for nowww

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.

Which expression is equivalent to 2x^2+7x+4?

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.