Determine if the ordered pair (1/2,-1/2) is a solution to linear system 4x + y = -1
7x - 3y = 4

Vinny is interviewing for a job.he wants his take home pay to be at least $42,000.what is the least salary he can earn if he pays 25% income tax?

The area of a square floor on a scale drawing is 64 square centimeters, and the scale drawing is 1 centimeter: 3 ft. what is the area of the actual floor? what is the ratio of the area in the drawing to the actual area? the area of the actual floor is square feet. the ratio of the area in the drawing to the actual area is 1 square centimeter: square feet.

Sections of prefabricated woods are each 5 1/3 feet long, how long are 7 1/2 sections placed end to end?