Write a sentence to model the following equation:

-20+20=0

An earthquake strikes and an isolated area is without food or water. three crews arrive. one can dispense needed supplies in 4545 hours, a second in 9090 hours, and a third in 6060 hours.

Paul rolled a number cube. What is the probability he will roll a 5 or 6

What is 1 + 3x + x =

After giving out 17 cards to 42 students, Mr. Todd had 23 cards left. how many cards did he have at first

What are the positive and negative square roots of 49/25?

What is the correct answer after multiplying both sides of the inequality - x ≥ 5 by - 1?

Wayne is mixing paint. He makes six quarts of brown paint by mixing equal quantities of yellow paint and violet paint. The violet paint is made from one- third red paint and two-thirds blue paint.

Why do scientist use a universal system of measurement?

How many 3/4 cup servings are in 7/8 cup of pudding

Sociologists have found that information spreads exponentially in a population. accordingly, the formula y = 525 (1 - e-0.038t) models the spread of information in a population of 525 people within t hours.