Inverse Proportionality x=a+b+4 and a ∝ y²; b ∝ 1/y when y=2; x=18 and when y=1;x=-3 Find x when y=4?

e) none of the above because the measure of angle cba is 101°

the answer would be 150 books

step-by-step explanation:

if you divide 300 by 2 you will get 150

2.2°  

step-by-step explanation:

let θ = the angle of elevation.

tanθ =77/2020

tanθ = 0.038 12

      θ = tan⁻¹0.038 12

      θ = 2.2°

answer: x=60