Which expression is equivalent to 2 (a+2b) - a-2b

The base of an auditorium is in the form of an ellipse 200 ft. long and 100 ft. wide. A pin dropped near one focus can clearly be heard at the other focus. Determine the distance between the foci to the nearest tenth of a foot

What is 87 24 over 25 as a decimal

Drag each equation to show if it could be a correct first step to solving the equation 9 (x + 2) = 90.

A rectangular garden bed measures 24 feet by 10 feet. A water faucet is located at one corner of the garden bed. A hose will be connected to the water faucet.

Show each mixed number on the sme number line. Then write wach as an improper fraction a. 2 2/3 b. 4 1/3 c 1 2/3

What is the answer to (3x) to the 5th power

What is 45 decreased by 12 percent

Zhen is an audiobook narrator. The table gives some completed audio lengths and the amount of time Zhen spends researching, recording, and editing the audiobook. Completed (hours) _ Working time (hours) 1 _ 6 1/2 3 1/2 _ 22 3/4 7 _ 45 1/2 10 _ 65

What Katie bought some flour she used 3/8 of it to bake bread what percent of the flower is left over

Which of the following are independent events? A. Knowing that you have to get up early tomorrow, and going to bed before 9 p. m. B. Knowing that you have a test in school tomorrow, and studying the night before C.