Solve the problem.A retailer finds that total costs per day are given by 
where c is cost and n is units sold. What is c when no units are sold?
A. $225
B. $81
C. $1296
D. $108
Answer: B
Mathematics
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Solve the radical equation. Check all proposed solutions.
= y + 1
A. y = 4
B. y = -3
C. y = - 
D. y = 3
Mathematics
Find the location of the indicated absolute extremum for the function.Maximum
A. No maximum B. x = 0 C. x = 3 D. x = 5
Mathematics
Find the length of the third side of the right triangle. Assume that c represents the length of the hypotenuse. Give an exact answer and, if appropriate, an approximation to three decimal places.b = 20, c = 25
A. a = 5 B. a = 225 C. a = 45 D. a = 15
Mathematics
Solve the equation. If necessary, round the answer to four decimal places.
?
?
(Hint: 
)
Fill in the blank(s) with the appropriate word(s).
Mathematics