Solve the problem.Given is a graph of a portion of the postage function, which depicts the cost (in cents) of mailing a letter, p, versus the weight (in ounces) of the letter, x. Find each limit, if it exists:
p(x), 
p(x), 
p(x)
A. 77; 77; 77
B. 77; 99; does not exist
C. 77; 99; 77
D. 99; 77; does not exist
Answer: B
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Solve the equation for the specified variable.
+ 
= 
for c
A. c = 
B. c = 
C. c = ab(a + b)
D. c = a + b
Add or subtract as indicated. Express the answer as a single polynomial in standard form.2(4x3 + x2 - 1) - 7(4x3 - 4x + 2)
A. -20x3 + x2 + 28x - 16 B. -20x3 + 2x2 + 28x - 16 C. -20x3 + 2x2 - 28x - 16 D. -20x3 + 2x2 + 28x + 16
Solve the problem.The population of a particular city is increasing at a rate proportional to its size. It follows the function 
where k is a constant and t is the time in years. If the current population is 19,000, in how many years is the population expected to be 47,500?
A. 74 year(s) B. 5 years(s) C. 11 year(s) D. 6 year(s)
Determine the quadrant(s) in which (x, y) is located so that the condition(s) is (are) satisfied. ? x = -2 and y > 0 ?
A. Quadrant IV B. Quadrant II or IV C. Quadrant II D. Quadrant I E. Quadrant III