GIVE THE CORRECT ANSWER AND I WILL THANK, RATE 5 STARS, AND GIVE BRAINLIEST!!! System Of Equations:
Solve by substitution:

y = -7x + 1

5x + 4y = -19

Group of answer choices

(-1 , -6)

(1 , -6)

(1 , 6)

(3 , 4)

Atriangle has an area of 72 square inches. if the base of the triangle has a length of 18 inches, what is the height of the triangle? use the formula for the area of a triangle: area = (base)(height) type a numerical answer in the space provided. do not include the units or spaces in your answer.

Find the cosine function that is represented in the graph.

Find the value of x. round the length to the nearest tenth