Which expression shows you how you can use mental math to simplify the expression (53 + 23) + 7 most easily? A. 7 + (23 + 53) B. (23 + 53) + 7 C. 53 + (23 + 7) D. 7 + (53 + 23)

Confirm that f and g are inverses by showing that f (g (x)) = x and g (f (x)) = x. f (x) = the quantity x minus seven divided by the quantity x plus three. and g (x) = quantity negative three x minus seven divided by quantity x minus one.

6 times the sum of a number and 2 is 8 less than twice the number

Rita answered 45 questions correctly on her latest math test. She earned 75% on that test. How many questions were on the test?

20. Seventy is 60% of what number?

Lisa lives in Atlanta. She is going to a baseball game with her two sisters and her parents. They have $100 to spend. After they buy their tickets, how much money will they have to buy refreshments?

Ed fills his sports bottle with 1.2 liters of water. After his bike ride, he drinks 200milimeters of the water. How much water is left in Ed's sports bottle

A building cast a shakedown that is 12 meters long. The distance from the top of the building to the top of the shadow is 20 meters. Determine the height of the building

A person operating a machine can mow 0.75 acres in ½ hour. What is the rate, in acres per hour, that the person can mow? Write your answer as a decimal.

Select the best answer for the question. 20. 7⁄8 = ?⁄48 A. 13 B. 1 C. 42 D. 6

If both dimensions in a parallelogram are doubled then which statements about its area will be true 1. The ratio of the new area to the old area will be 2:1. 2. The ratio of the new area to the old area will be 1:4 3.