Answer:
= 1 5/16
[/tex] 1 \frac{5}{16}[/tex]
Step-by-step explanation:

Expand

Collect like terms and simplify

Cross Multiply

Divide both sides of the equation by 80

Hope it can help u!!!!!!!
Direct variation/proportional means that one variable is always a multiple of the other variable.
It looks something like

, where n is any number.
Answer:
Both Sophie and Mike.
Step-by-step explanation:
An exponential function produces a geometric sequence.
A linear function produces an arithmetic sequence.
Sophie is correct in claiming the first statement to be true.
Mike is correct in claiming the second statement to be true.
Both Sophie and Mike are correct.