Answer:
B. 27 miles per gallon
Step-by-step explanation:
In order to solve for this, you just have to divide:

Hopefully I helped :)
The vertex is (7,-50)
***rewrite in standard form***
Step 1: Flip the equation.
−
x
+
4
=
−
8
Step 2: Subtract 4 from both sides.
−
x
+
4
−
4
=
−
8
−
4
−
x
=
−
12
Step 3: Divide both sides by -1.
−
x
−
1
=
−
12
−
1
x
=
12
Answer:
x
=
12
Mid segment of triangle = 1/2 base
base = x here, so
1/2x = 15
multiply both sides by 2,
x=30
answer: x=30