For the given f(x) and g(x), evaluate the expression.f(x) = 
, g(x) = 
;
(f - g)(x)
A. 3
B. 21
C. 3x
D. 3
Answer: D
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Solve.David recently switched to a long distance phone company which charges a monthly fee of $7.95 plus $0.08 per minute. A linear function that expresses the monthly bill B as a function of minutes used m is 
How many minutes were used for long distance if the long-distance phone bill was $39.95?
A. 499 minutes B. 400 minutes C. 386 minutes D. 409 minutes
Construct a truth table for the statement.~(p ? q) ? (p ? ~q)
A. 
B. 
C. 
D. 
Solve the problem.The surface area S (in square inches) of a cylindrical pipe with length 12 inches is given by S(r) = 2?r2 + 24?r, where r is the radius of the piston (in inches). If the radius is increasing with time t (in minutes) according to the formula r(t) = 
t2, t ? 0, find the surface area S of the pipe as a function of the time t.
What will be an ideal response?
Simplify.240 ÷ 6 - 2
A. 38 B. 60 C. 236 D. 232