The sum of 3 number is 80. the third number is 3 times the first. the first number is 5 less the second. what are the numbers

Nine more than twice a number is 23

Divide the school into classes and then randomly select students from each class is an example of:

What is the fractional portion of the solution to 5 3/8 + 2 3/12

Margo sold 3 times as many pears as apples in a week. She sold 3,456 apples and pears. How many pears did she sell? Use a letter to represent the unknown before solving.

A box of cereal has a volume of 336 cubic inches. If the width of the box is 4 inches and the length is 7 inches, what is the height of the box I'm confused

Which ordered pair is a solution of the equation? 2x+3y=10?

Two less than the product of a number and - 5 is - 42

A plane flies from New York to Los Angleles at a constant speed of 800 km/hr. If the distnace from New York to Los Angeles is 4000 km how long will it take the plane to fly that distance?

Anna bought a sandwich for 2.49 and a drink for 1.55. She gave the clerk 5.05. How much change should she get back?

One linear expression is subtracted from a second linear expression and the difference is x-5. What is the difference when the second linear expression is subtracted from the first?