Tan(angle) = opposite length/ adjacent length
Tan(50) = h/40
h = 40 x tan(50)
h = 47.67 or 47.7 feet
Y=180-70 (interior)
y=110
the answer is D
I think you meant the two <em>segments</em><em> </em>are identical, if so then:

yes. Machine A pops 42.5 ounces of popcorn in 10 minutes. Machine B pops 45 ounces of popcorn in 10 minutes. Add the two to get 87.5 ounces. 8 times 9 is 72 which is less than 87.5 ounces