85 is the correct answer.
Answer: -0.25n-0.15
Step-by-step explanation:
simplify
0.5n+0.3-0.75n-0.45
Combine like terms
-0.25n-0.15
The engine would need three gallons of gas.
12/4=3
15 each for a child I think hope it helped :) :D
The correct answer is b), or x² = -12y.
Explanation:
This equation may be written in standard form as

The coefficient in front of x² is negative so the curve is downward.
The vertex has coordinates (0,0).
The vertex is equidistant from the directrix and the focus, so the focus is (0, -3).