4.5(4-x) + 36 = 202 - 2.5(3x + 28)
Distributive property
18 - 4.5x + 36 = 202 - 7.5x - 70
Combine like terms
-4.5x + 54 = -7.5x + 132
Add 7.5x to both sides
3x = 78
Divide both sides by 3
x = 26
The gas cost will be $19.53 for this trip.
Step-by-step explanation:
Given,
Distance covered by car per gallon = 32 miles
Cost of one gallon = $1.99
Unit rate in terms of miles;
32 miles = $1.99
1 mile = 
Therefore,
314 miles = Unit rate of mile * 314 miles
314 miles = 

Rounding off to nearest hundredth;
314 miles = $19.53
The gas cost will be $19.53 for this trip.
Keywords: unit rate, multiplication
Learn more about unit rate at:
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<span>They are finite sums of expressions of the form where a is a constant, x is the variable and k is a non-negative integer</span>
D. 21cm because you divide all sides by 2 then get your slope form and multiply by seven