Solve the problem. Write the answer in lowest terms.Mr. Howard installed 
-inch roofing shingles on top of a 
thick tar paper. What was the combined thickness of the two layers of materials?
A. 
inch
B. 
inch
C. 
inch
D. 
inch
Answer: D
Mathematics
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Determine whether the graph is the graph of a function.
A. Not a function B. Function
Mathematics
Convert the improper fraction into a mixed number in lowest terms.
A. 2
B. 3
C. 1
D. 2
Mathematics
Use the table to determine if f is one-to-one. If so, use the table for f(x) to find a table for f-1(x).
A. 
B. 
C. 
D. Not a one-to-one function
Mathematics
Determine the function value.Suppose f(x) = logax and f(7) = 2. Find f(49).
A. 8 B. 2 C. -4 D. 4
Mathematics