What is the measurement of n? a) 17° b) 18° c) 20° d) 45°

I think the answer is A)17

Step-by-step explanation:

B)

Step-by-step explanation:

This figure is a right triangle. The angle that was split into two was 90°, so to get the measurement of the other side of the angle subtract 90° - 72° = 18°

The statement "y varies directly as x," means that when x increases, y increases by the same factor. In other words, y and x always have the same ratio: y/x =K

it can be written as ---> y=kx

then put in the values to get a common ratio
k= y/x
k1= 11/7
k2= 13/8

therefore, there's no common ratio in the given table