First find the determinant, Δ = b^2 - 4ac
<span>a = 1, b = 8 , c = -2 </span>
<span>Δ = 8^2 - 4*1*-2 </span>
<span>Δ = 64 + 8 </span>
<span>Δ = 72 > 0 </span>
<span>therefore there are two real roots!</span>
First one is 2 ft because 12 inches in one foot. Other people will probably help out on rest!! I’m little busy rn so :D
% of decrease would be 100 - (22*100)/28
=100-78.57 = 21.43%
I think it’s 80 nvm I’m not sure
