Here is an addition sentence

12 + 1 = 13

Choose the related addition sentence that shows the commutative property of addition.

A. 1 + 12 = 13

B. 13 - 12 = 1

C. 13 - 1 = 12

D. 7 + 6 = 13

Solve x for the equations y=2x-10 2y=x-8

A box contains 4white balls and 5black balls. Two balls are drawn at random. Find the probability that 1) both white 2) both black

A kite has a perimeter of 38 in. If the length of one side is 8 in, what could be the length of one of the other sides?

The equation d = d equals StartFraction m Over V EndFraction. can be used to calculate the density, d, of an object with mass, m, and volume, V. Which is an equivalent equation solved for V?

Maria wants to add to her CD collection. If a CD costs $9, which expression shows the cost of d CDs?

Find the area of a room whose dimensions are 15 1/2 feet by 18 feet

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Ansley's age is 5 years younger than 3 times her cousin's age. Ansley is 31 years old. Let c represent Ansley's cousin's age. What expression, using c, represents Ansley's age?

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A car dealer offers a 10% discount off the list price x for any car on the lot. At the same time, the manufacturer offers a $2,000 for each purchase of a car A. Write a function f (x) to represent the price after the discount. b.