Solve the system by substitution.

-2x=3y=9

-x=y

What is the product? (-2x-3y7) (-4x-3)

A machine can print 80 T-shirt in 10 minutes. Find the number of T-shirt the machine can print in an hour.

Round 713,951 to the nearest hundred

What is the solution to this equation? 4x+2 (x+6) = 36

Solve 16.24 : 1000 A. 1.624 B ...01624 C ...1624 D. 1624

Write a formula for the area A of a parallelogram.

Pedro and Natalia play the trumpet. Pedro practiced 3/4 of an hour last night. Natalia practiced for 1/2 an hour. Who practiced longer?

What is the answer? Kim and Cyndi are starting a business tutoring students in math. They rent an office for $400 per month and charge $40 per hour per student.

There are nine balls. One is slightly lighter than the rest; the difference is small enough that you can't tell just by picking them up.

A cone-shaped building has a height of 11.4 meters and a base with a diameter of 12 meters. The building will be filled with road salt that costs $20 per cubic meter. How much will it cost to fill the building with road salt? Use 3.14 for π.