1. The mistake is in the second line (didn't fully distribute)
2. The mistake is in the second line (didn't properly add 4p and 7p)
Answer:
D.420
Step-by-step explanation:
400 *0.05 = 20 so adding it to 400 will equal to 420
The slope can be found by the "rise over run", that is, is the change in variable y divided by the change in variable x.
In this question,

Substituting the values:

Answer: 0.06 feet per feet of highway.
Answer:
p=6
Step-by-step explanation:
2p + 7p = 54
Combine like terms
9p = 54
Divide by 9
9p/9 = 54/9
p = 6
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