What is the solution to the following system? 3x+2y+z=20 x-4y-z=-10 2x+y+2z=15 a. (2, 3, 4) b. (4, 3, –2) c. (4, 3, 2) d. (6, 7, –2)

If given an equation of a line such as -1/2x+6 how would you create an equation of a line parallel and perpendicula to this line that goes through another point such as (4,10)

You are updating your garage and the only thing left to paint is your garage day. you're only going to paint the slide that faces the street. the garage door is 9 fert 8inches tall and 120 inches wide. you need to know the surface area of the side of the garage door to determine how much paint to buy. the hardware store sells paint by how much covers a square foot. what is the surface area you should report to the hardware store what is the answer

Explain how you can use the associative property to evaluate (7x50)x4.