Why can a subtraction problem be rewritten as a addition problem without changing the outcome?

Alice wants to put wall-to-wall carpeting in a small room with the floor plan shown. a. How much will Alice pay for carpet that costs $4.50 per square foot? b.

25% of 40 emails were spam how many emails were spam

What is the value of "x" in 16^2 = x

Expand and simplify m (n+1) - n (m-1)

The measures of 6 of the interior angles of a heptagon are: 120,150,135,170,90 and 125 what is the measure of the largest exterior angle?

Your brothers hourly wage is 4/5 of your sisters hourly wage. if your brother earns $10 per hour, what does your sister earn?

Jamal decides he wants to shop around for the best price for purchasing an advertisement space in a newspaper. One of the companies he contacts charges $2.00 for each line in the advertisement and an initial fee.

How does adding with decimals compare to adding whole numbers?

Scorpion was walking down the street he had 2 swords on his back but while he was walking Sub-Zero jumped on the back and took Scorpions sword while Sub-Zero already had 1 sword now how many swords does Sub-Zero have?

Susan tossed a die 1,194 times. Which of the following would be a good estimate of the number of times she got the number 3 on the die?