How many pair of the whole numbers have a sum of 40

John gained 8 pounds while on vacation, but lost 12 pounds after he returned home. Which number is the additive inverse of the change in John's weight?

Rosy waxes 2/6 of her car with 1/3 bottle of car wax. at this rate what fraction of the bottle of car wax will rosy use to wax her entire car

The domain for f (x) and g (x) is the set of all real numbers. Let f (x) = 2x2 + x - 3 and g (x) = x + 2. Find (f•g) (x). 2x3 + 5x2 - x-6 2x3 - 5x2 + 6 x2 - 4x + 3 2x3 - x2 + 4x - 3

If storm has 3 bars she needs 22 bars but one bar equals 4 ores how many ores does she need?

9x-3y=3; 3x+8y=-17 I want to know the steps and answers

Savannah is a real estate agent who works strictly for commission. If she gets paid 3% commission of a home's sales price, how much would she earn if she sold 2 houses totaling $560,000?

How many square inches are in 60 ft.²

Find the product - 3x (-8x^2+5x+3)

James's sister is 4 years younger than James. Their combined Ages add up to 33. How old is James?

Find the supplementary angle to an angle that is 128.9°. Explain your answer.