Translate the word phrase into an algebraic expression. Explain what the variable represents.35 fewer than the number of text messages
A. 35t, where t represents the number of text messages
B. 35 ÷ t, where t represents the number of text messages
C. t - 35, where t represents the number of text messages
D. 35 - t, where t represents the number of text messages
Answer: C
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Find the volume of the solid generated by revolving the region R bounded by the graphs of the given equations about the y-axis.x = 
, x = 0, between y = - 4 and y = 4
A. 
?
B. 
?
C. 
?
D. 
?
Express the radical in simplest form, rationalize denominators, and perform the indicated operations.
- 9
- 4
A. 68
B. -68
C. 30
D. -108
Change the mixed number to an improper fraction.19
A. 285
B. 15
C. 
D. 34
Solve the problem.
The graph of y = f(x) represents the amount of oil in millions of gallons remaining in a tank after x days. (i) Estimate the initial and final amounts of oil contained in the tank. (ii) When did the amount of oil in the tank remain constant?
A. 160 million gallons, 60 million gallons; 12 ? x ? 14 B. 160 million gallons, 20 million gallons; 0 ? x ? 6 or 8 ? x ? 14 C. 160 million gallons, 60 million gallons; 0 ? x ? 4 or 12 ? x ? 14 D. 140 million gallons, 40 million gallons; 8 ? x ? 16