Solve the problem.A contractor mixes concrete from bags of pre-mix for small jobs. How many bags with 8% cement should he mix with 9 bags of 16% cement to produce a mix containing 12% cement?
A. 23 bags
B. 11 bags
C. 9 bags
D. 18 bags
Answer: C
Mathematics
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Find the area.Find the area under y = 
in the first quadrant.
A. 10?
B. 20?
C. 
?
D. 5?
Mathematics
Give a verbal representation of f(x).f(x) = 5x - 
A. Multiply the input x by 5 and then subtract 
to obtain the output y.
B. Divide the input x by 5 and then add 
to obtain the output y.
C. Divide the input x by 5 and then subtract 
to obtain the output y.
D. Multiply the input x by 5 and then add 
to obtain the output y.
Mathematics
Write the numeral as an Egyptian numeral.367
A. 
B. 
C. 
D. 
Mathematics
Prove the formula for all natural numbers n.
?
?
List the steps involved.
What will be an ideal response?
Mathematics