Answer:
9/8
Step-by-step explanation:
Z + 4 = 9n
This is the answer because sum is addition and product is multiplication .
Firstly, expand the equation.

Next, move the variable x to the left and all the constant to the right.

Then, solve for x.
Answer:
$26 + X = $57
$26 + $31 = $57
X = $31
My first time ever answering a question hope it helped =) (And sry it took long)
Step-by-step explanation:
Answer: 13.60 gallons divide 355 by 17 to get the base miles per gallon then use that and divide it 284 by 20.88
Step-by-step explanation: