Factor the expression. 40z - 20

a) 2z - 1

b) 2 (20z-10)

c) 20 (2z-1)

d) 20 (2Z-20)

Vera bought a black velvet dress because it was on sale for 25%off. The original price was $73. How much did Vera save?

You invest $1,100 in an account that has an annual interest rate of 2.1%, compounded continuously. how much money will be in the account after 7 years?

Give a counterexample for the statement: All square roots are ration numbers

What is the median of the data? 12, 17, 16, 10, 20, 13, 14, 14, 12, 12, 19, 18 16 15

Ratio of red cars to Blue Cars in the parking lot was 5 to 3 if there are 40 red cars how many blue cars are there

The school band sold T-shirts to raise money for an upcoming trip. It sold 120 shirts, which was 30 percent of the total sales on Sunday. How many T-shirts did the band sell in all? Check all that apply.

What are some examples of the golden ratio involving art?

Ashton left his house and ran 4 miles east and 3 miles north he took the diagonal path back home if he burned 105 calories every mile that he ran how many total calories did he burn on this run

Solve 3x-5y=13 4x+8y=-9

Lewis needs 1/8 quart of paint to cover 10 square yards. How many square yards can he paint with 4 quarts of paint?