Solve the problem.If w = 4i + 4j, find 2w.
A. 8i + 4j
B. 6i + 4j
C. 6i + 6j
D. 8i + 8j
Answer: D
Mathematics
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Given f(x) and g(x), find the composition.f(x) = -9x + 7; g(x) = 4
Find (g ? f)(x).
A. -9
+ 7
B. 4
+ 7
C. 4
D. 4 + 
Mathematics
Divide.- 
÷ 3
A. -4
B. - 
C. 
D. - 
Mathematics
Write the decimal as a fraction or mixed number. Simplify, if possible.7.6
A. 7
B. 
C. 
D. 1
Mathematics
Solve.The gasoline/oil ratio for a certain scooter is 20 to 1. If 1 gallon equals 128 fluid ounces, how many fluid ounces of oil should be mixed with 4 gallons of gasoline? Round to the nearest fluid ounce.
A. 250 fl oz B. 25 fl oz C. 26 fl oz D. 27 fl oz
Mathematics