If a-b=10 and a+b=31 what is the value of 3a-2b

What's one way we can check our answer to 2 * 10 = 20?

Part a.) the area of a square is (16x^2-8x+1) square units. determine the length of each side of the square by factoring the areas expressions completely. show all work part b.) the area of a rectangle is (81x^2-4y^2) square units.

A dog's food bowl holds 2 cups of dog food. Pete uses a scoop that holds 1/3 of a cup of dog food. how many scoops will it take for pete to fill the dog bowl.

Your class has 12 boys and 13 girls. What percent of the students in the class are girls? a) 13% b) 29% c) 52% d) 48%

Quotient of 80 divided by 5

Which number is rounded to the nearest thousand correctly? A. 43,264 → 43,300 B. 123,987 → 125,000 C. 567,489 → 568,000 D. 56,471 → 56,000

Question 2 (short fill-in) Evaluate the expression: 53-122+25 Enter your answer as a number, like this: 42

Triangle m is also a scaled copy of s the scale factor from s to m is 3/4 what is the scale factor from m to s

A recipe for muffins calls for 1/2 quart of buttermilk, 1/3 quart of skim milk, and 1/16 quart of oil. How many total quarts of liquid ingredients does the recipe call for?

javier will paint the four outside walls of the birdhouse but not the bottom or the roof. What is the area that javier will paint?