Solve the system of equations.

10x+y=−20

y=2x2−4x−16
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How do you use the elimination method for this question? explain, because i really want to understand!

Haley buys 9 pounds of apples for $3. how many pounds of apples can she buy for $1?

Uestion 1(multiple choice worth 5 points) (05.02)alex wants to paint one side of his skateboard ramp with glow-in-the-dark paint, but he needs to know how much area he is painting. calculate the area of the isosceles trapezoid. isosceles trapezoid with top base 12 feet, bottom base of 18 feet, and height of 6 feet. 72 ft2 84 ft2 90 ft2 108 ft2