Math

Solve the system

x+y=3

x-y=1

A building is 2 ft from a 9-foot fence that surrounds the property. A worker wants to wash a window in the building that is 13 feet from the ground. He plans to place a ladder over the fence so it rests against the building just below the window.

Find the sum of (-4 + 1) and (10-51).

How do I solve 7 1/3+5 3/5

Witch is greater 1/5, 0.22, 19%

It costs $23 per hour plus a flat fee of $16 for a plumber to make a house call. What is the equation of the form y = mx + b for this situation?

Find the greatest common factor of the following monomials: 32x^3 y^5 25x^4 y^4

You get in an elevator and go down 8 floors. You exit on the 16th floor. Write and solve an equation to find what floor you got on the elevator.

A six pack of undershirts cost $13.98 this is $3.96 less than the cost of buying six individual shirts if each undershirt cost same amount how much does each each undershirt cost one purchase individually

Is tthinks of a number between one and 20 that has exactly 5 factors what number is he thinking of

Verify the identity. Cos (pi-beta) + sin (pi/2 + beta)