Find the solution to the system of equations given below using elimination by addition
5x + 4y = -20
5x + 12y = -10

a. x = -5, y = 5/4
b. x = 2, y = - 15/2
c. x = -94/5, y = 7
d. x = -7, y = 25/12

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (-4, 0) and (6,0). the y-intercept of thefirst parabola is (0, –12). the y-intercept of the second parabola is (0-24). what is the positive difference between the avalues for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth.

At the county fair, the baxter family bought 6 hot dogs and 4 juice drinks for $12.90. the farley family bought 3 hot dogs and 4 juice drinks for $8.55. find the price of a hot dog and the price of a juice drink.

Which of the following circles have their centers in the third quadrant? check all that apply.