A45 foot long escalator rises from the first floor to the second floor of a shopping mall. the escalator makes a 30° angle with the horizontal. how high above the first floor is the second floor?
a. 26 ft
b. 78 ft
c. 22.5 ft
d. 45 ft

It's a 30-60-90 triangle, the side opposite the 30 degree angle is half of the hypotenuse. So the answer is C.22.5

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2

step-by-step explanation: