D. Research the need
should be done earlier
The answer would be to research the need. This should have been done before the project began.
Answer:146.8983 grams
CarryOnLearning(◍•ᴗ•◍)
for this you use the pythagoreom theorem
6^2 + 8^2
36 + 64 = 100
the square root of 100 is 10
10 is the answer