Can someone explain the answer ?

x = 9.5

Step-by-step explanation:

Since you are given the adjacent side and need to find the hypotenuse then you need to use cos = adj/hyp so cos (47) = 6.5/x

So x = 6.5/.682, since cos 47 = .6819983601

x = 9.5

81 seats

step-by-step explanation:

if you multiply 0.65 times 125 then you get 81.5 seats. well since you can't have half of a seat you have to round down and get 81 seats in the no children zones. that leave 44 seats outside of the no children zone.