Answer:
y= -2x -4
Step-by-step explanation:
slope: rise/run = 2/-1 = -2
y-intercept: -4
x₁ = 6 and x₂ = 8
See the picture below
x=11. 38 degrees; 52 degrees
90+6x-14+3x+5=180
81+9x=180
9x=99
x=11
38 degrees, 52 degrees
5 pounds
