Choose one a. 7.8 ft b. 8.8 ft c. 8.3 ft d. 9.2 ft

A =s^2    since the wall is square

78 =s^2

take the square root of each side

sqrt(78) = s

s=8.83 ft

Choice B

x+y = 29, 5x + 2y = 100

step-by-step explanation:

i'm guessing it was a multiple first option was the correct answer

let m = monomial

let t = trinomial

so, m times t = t.

monomial times a trinomial = another trinomial.