Solve the problem.The revenue achieved by selling x graphing calculators is figured to be 
The cost of each calculator is 
How many graphing calculators must be sold to make a profit (revenue - cost) of at least $712.80?
A. {x?55 < x < 53}
B. {x?54 < x < 66}
C. {x?24 < x < 36}
D. {x?56 < x < 64}
Answer: B
You might also like to view...
Find the prime factorization of the composite number.5200
A. 16 × 25 × 13 B. 2 × 5 × 13 C. 24 × 52 × 13 D. 22 × 102 × 13
Solve. Write the answer as a mixed number in simplest form.Keith Wood has 15
feet of rope. He cuts off a 6
-foot length and then a 3
-foot length. If he now needs a 6-foot piece of rope, will the remaining piece do?
A. Yes, there is still 
of a foot left.
B. No, he will be 
of a foot short.
Either the dimensions of two matrices or the matrices themselves are given. Find the dimensions of the product AB and the product BA. If either is not defined, say so.A = 
; B = 
.
A. AB is 2 × 2; BA is 1 × 1. B. AB is not defined; BA is 2 × 2. C. AB is 1 × 1; BA is not defined. D. AB is 1 × 1; BA is 2 × 2.
Translate the phrase into a division problem. Then find the quotient.Find the sum of 208 and 2994.
A. 3203 B. 3202 C. 3302 D. 3192