Joseph built a levee averaging 1.8 feet high, 4.2 feet wide, and 4,200 feet long. He used a scraper with a capacity of 6 yards to build the levee. (Note: Yards means cubic yards.) To get the dirt, he lowered the field 4 inches with the scraper
a. How many yards of dirt are in the levee? Express your answer
using scientific notation with one decimal place.
b. How many yards of dirt were moved? (Note: Do not forget that
the field was lowered.)
c. How many trips did he make with the scraper?
a. 1.2 × 103 d
b. 980 yd
c. 163 trips
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