Answer:
I think it's 20/9 hours. so 2.222222... hours.
Step-by-step explanation:
here it is in order
x^2 = 1 / x ^ -2
x^4 ÷ x^3 = x
(x^2)^2 = x^4
x^3 × x^3 × x^3 = x ^ 9
A.
y=mx + b where m is the slope and b is the y-intercept. So substituting 4/5 for m and 5 for b, you get answer A.