D. 90 im pretty sure its this. hope this helped :)
ANSWER

EXPLANATION
We were given that

varies directly as

We can write this mathematically as,

This implies that,

where k is the constant of variation.

This implies that,


The equation becomes

When

Answer:
Step-by-step explanation:
here is a solution :
Answer:
100%+15% = 115%
proportionally:
x - 100%
161 - 115%
x = (161 * 100%) / 115% = 140
Answer:
The answer is R=2
Step-by-step explanation:
30=2 times 15