For what values of a and b is this statement true?

|a+b|=|a|+|b|

Complete the square 2x

What is 1 hour, 18 minutes, and 27 seconds mixed together

Jack spends 1 2/5 as long on his homework as Jill. Last week, Jill spent 6 3/4 hours doing homework. How long did Jack spend doing homework?

Joe goes to a Mexican restaurant and orders nachos. He can just have cheese or add any of the following: chicken, onion, sour cream or olives. How many different variations of nachos are possible?

5.94 in what is that in inches

Write these numbers in order from least to greatest. 2.143, 2.44, 2 33/100, 2.345, 2 400/1,000, 2.37, 2 375/1,000, 2.35

Add the rational expressions and simplify 2x-1 / (x-3) (x+2) + x-4/x-3 A. x+3/x+2 B. x-3/x-2 C. x-2/x-3 D. x²+9/x²-x-6

2 cups is to 10 cans as 14 cups is to how many cans

Is adding polynomials will always yield a polynomial answer true or false?

A cylinder has a base area of 14 cm^2 and height of 6.8 cm. What is the volume of the cylinder?