A bag contains 80 marbles: 40 are red, 20 are blue, and 20 are black. what is the probability of selecting a red or blue marble at random

Dylan's dog weighs 12 times as much as his pet rabbit. The dog and rabbit weigh 104 pounds altogether. How much does Dylan's dog weigh?

An office needs to order carpet for the waiting room. The room measures 30 feet by 24 feet. The carpet is sold in square yards. How many square yards of carpet are needed? Remember, Area = Length cross times Width.

What is the value of 46 - 2 * 4 + 7

Converting observations from original values to standard deviation units is known as

What are the steps to solve - 2n - (9-10n) ?

Evaluate the following expression 40 - 8 - 102

The value of a computer is $1200. It loses 20% of its value every year. Write a function the represents the value y (in dollars) of the computer after t years. The find the value of the computer after 5 years.

You spent $50 on supplies for the bake sale Each item sold for $2. After the sale, you had a profit of $180. How many items did you sell?

Which of the following is a term, variable, and expression? a. 21 b. ab c. 5x2 d. h

You have five quarts of paint. It takes 5/8 quart to paint each chair you are asked to paint. How many chairs can you paint?