what does a + a equal to

A Store Sells 8-foot boards for 2.40 each. What is the cost per foot

He net of a square pyramid is shown below. What are the possible areas for a single face in this net? Check all that apply.

What is the best order-of-magnitude estimate for 58,100? a. 103 b. 104 c. 105 d. 106

Raymond weighed his three dogs. The oldest dog weighs 74 pounds. The other two dogs each weigh 34 pounds. How many more pounds does the oldest dog weigh than the other two dogs combined?

At midnight the temperature is - 6°C. At midday the temperature is 9°C. By how much did the temperature rise?

What is N = - 8 (25) + 200

Rachel plays a game by rolling two number cubes with sides numbered 1 through 6. To win the game, the sum of the numbers facing up must be 11. What is the probability that Rachel will win the game? A=2/6 B=2/12 C=2/36 D=4/36

Which of the following statements are true? Check all of the boxes that apply. fx=2^x has the same domain and range as Fx=^x Fx=-2^x has the same domain and range as fx=^x, fx=-^x has the same domain as fx=^x but a different range, fx=

A company purchased a machine for $970,000. the machine has a useful life of 12 years and a residual value of $4,500. it is estimated that the machine could produce 1,000,000 units over its useful life. in the first year, 200,000 units were produced.

After a 80% reduction, you purchase a new washing on sale for $100. What was the original price of the washing machine?