Spiral review be sure your answer is in simplest form urgent ! first one get 39 points and brainiest

1. )

2. 1/2 divided by3/4 =

3. 6% written as decimal

4. 12% of 68

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 of the following are accepted without proof in a logical system? check all that apply.

If the cost to mail a package is an initial $5 and $0.28 for every pound the total cost to mail a package was $11.27, how much did the package weigh?