Answer:
8.8
Step-by-step explanation:
first you divide 28/7 (because there are 7 days in the week) you take that number, which is 4 and multiply it was 2.2 to convert the 4 kilograms into pounds.
Answer: I'm not sure about the mixed number but the fraction is 923/5000
Answer:
E. x² + 11x - 42 = 0
Step-by-step explanation:
let the square sides be x
A = bh = (x + 3 + 3)(x + 2 + 3) = 72
(x + 6)(x + 5) = 72
x² + 11x + 30 = 72
x² + 11x - 42 = 0
40×x^8=128
x^8=128÷40
x^8=3.2
X=1.156494986 (8th root of 3.2)
40×1.156494986^xx=yy

I see I did something wrong in the 2nd part, just take the first question as the right one.