18 x 20 = 360
360 / 20 = 18
So 18 is the answer
Equation (1)

Equation (2)

Get y alone in equation (1)

Insert y in equation (2)

I wasn't taught this specifically, but I would think that it would mean two ratios are involved with the same problem, just like it says.
Answer:
162.9
Step-by-step explanation:
10 to the first power is 10 and 10 x 16.29=162.9
The answer is a(-9,0)
Because I know lol