Solve the problem.An art teacher knows that for a price of $20 per student, she can enroll 40 students in her pottery class. However, for each decrease of $2 in the price, she can expect 10 more students. What price will maximize her revenue from the class?
A. $26
B. $8
C. $14
D. $17
Answer: C
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A bad investment loses 5% of its value each year. The initial investment was $2,883. ? A: Find a formula that gives the value V, in dollars, of the investment after ?t years. ? B: What is the value of the investment after 7 years? ? C: When will the investment decline to half its original value? ? Round your answers to two decimal places if necessary. ?
What will be an ideal response?
A rectangle is 3 feet longer than it is wide. If its area is 4 square feet, find its dimensions. ? Please enter your answer without the units as two numbers, separated by a comma.
What will be an ideal response?
Provide an appropriate response.Write "three hundred seven thousand, 
ninety-nine" in standard form.
A. 3,007,599 B. 37,599 C. 370,599 D. 307,599
Find the rule that defines each piecewise-defined function.
A. f(x) = 
B. f(x) = 
C. f(x) = 
D. f(x) = 