Answer:
Surface Area = 150.8 square inch
Step-by-step explanation:
![Surface \ Area = 2 \pi r h + 2 \pi r^2 \ \ \ \ \ \ \ \ \ \ \ \ \ [ \ r = 4 , \ h = 2 \ ] \\\\](https://tex.z-dn.net/?f=Surface%20%5C%20Area%20%3D%202%20%5Cpi%20r%20h%20%2B%202%20%5Cpi%20r%5E2%20%20%5C%20%5C%20%5C%20%5C%20%5C%20%5C%20%5C%20%20%5C%20%5C%20%5C%20%5C%20%5C%20%5C%20%5B%20%5C%20r%20%3D%204%20%2C%20%5C%20h%20%3D%202%20%5C%20%5D%20%5C%5C%5C%5C)
If the ratio is 4:1 , pencils being the 4 and erasers being the 1, there are 4 pencils for every 1 eraser. Now, substitute the 4 pencils for 20 pencils. How do you get to 20 from 4? multiply by 5. You multiply the 4 pencils by 5 to get 20, and u multiply the 1 eraser by 5 to get 5, so there are 20 pencils: 5 erasers
Answer: He drove 139 miles.
Step-by-step explanation:
0.98x + 20.95= 157.17 where x is the number of miles driven.
-20.95 =-20.95
0.98x = 136.22
x= 139
The answer is D
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