Solve the problem.At SuperStop, gasoline costs 
per gallon when you pay with a credit card, 
per gallon less when you pay with cash. How much money will it cost to fill a 12-gallon tank if you pay with cash?
A. $17.04
B. $16.20
C. $16.94
D. $13.49
Answer: B
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Solve the problem.A geometric progression is a sequence of terms in which each term is r times the preceding term. The sum of the first three terms of such a sequence, where a is the first term, is given by the expression 
. Under what circumstances, if any, is this expression undefined?
A. The expression is defined in all circumstances. B. The expression is undefined for r = 1 C. The expression is undefined for r = 0 D. The expression is undefined for r = -1
By calculating an appropriate number of terms, determine if the series converges or diverges. If it converges, find the limit L and the smallest integer N such that 
for 
otherwise indicate divergence.an = 
A. L = 0, N = 8 B. diverges C. L = ln 4, N = 8 D. L = ln 2, N = 6
Provide an appropriate response. Find the equation of the line passing through the points (4, 1) and (-1, 3).
A. y = 
x - 
B. y = - 
x + 
C. y = 
x - 9
D. y = - 
x - 
Find the LCD of the given rational expressions.
; 
A. r(r + 1)(r + 4) B. (r + 4)2 C. r(r + 4)2 D. r(r + 4)