Which of the following expressions is not correctly written in scientific notation?

1 * 104

9 * 102

10 * 107

5 * 103

3/4x-5/4=1/3x Explain your answer

What is the sum of x + 9?

Solve the equation for the unknown variable. z3=-64 Enter your answer in the box.

Simplify the expression 2^2 x 2 ^ 3

Tess needs to buy sand for her children's playground. The sand costs $8 per ton, and there is a delivery cost of $50 with each order.

What is - 2, 0, 1.7, - 5/2 in order from least to greatest?

Four multiplied by the some number equals 32

Joe and grace are baking cookies they need a total of 2 cups of sugar for the recipe joe has 11/10 cups of sugar and grace has 3/4 of a cup of sugar without solving the problem do they have enough sugar explain your thinking

Sophia is 38 inches tall. Her mom is 5 feet tall. How many inches taller is Sophia's mom? inches

If you rent an apartment, which home insurance coverage do you not need? A) coverage for real property B) coverage for personal property C) coverage for injury caused to others