Sahil's brother is three years old how many weeks old is his brother?

Mrs. Jenning had 5/7 gallon of paint. She gave 1/7 gallon each to some students. How many students received paint if Mrs. Jennings gave away all the paint?

Multiply a number by 3, subtract 6 then add 2. The answer is 20. What is the number?

Bailey weighs 5 pounds more than Mrs. McInnes' dog biscuit. Bailey is 7 years old. Biscuit is 3 years old. Together they weigh 75 pounds. How much does bailey weigh?

Cindy wants to buy a doll named Kitty. The sign in the toy store says it is 30% off.

A restaurant bill before tax is $15.50. How much is a 15% tip for this bill? How much money should be left for the whole bill?

1 Why is it important to organize the equations so that the variables and operations are in columns? Explain. 2Describe a general method for deciding which variable to eliminate when using linear combinations.

What is the greatest number of teams can be formed that have the same amount of boys and girls on each team if they have 54 girls and 84 boys.

Police can estimate the speed of a vehicle before the brakes are applied using the formula 0.75d = (s^2) / (30.25) where s is the speed in miles per hour and d is the length of the vehicle's skid marks.

Classify each polynomial by its degree and by its number of terms (i. e. cubic or degree=3; trinomial. (a) 5x^4-8 (b) 4a^2-2a-16 (c) 9m^3

The ratio of books to magazines is 9:11 what percent of the reading materials are books