36, because the square root of 4 is 2 and the square root of 81 is 9. You multiply those and then double it to get 36.
Answer:
C.
Step-by-step explanation:
y = total cost used.
x = additional minutes
y = $49.95 + $0.15x
$61.20 = $49.95 + $0.15x. Subtract the $49.95 from each side.
$11.25 = $0.15x. Divide each side by $0.15
75 = x.
Michael used 75 additional minutes.
Answer:
Ummmmmmmm me no know
Step-by-step explanation:
