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 $312.80?
A. between 36 and 44 calculators
B. between 34 and 46 calculators
C. between 35 and 33 calculators
D. between 14 and 26 calculators
Answer: B
Mathematics
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Graph.y = x2 + 2x - 6
A. 
B. 
C. 
D. 
Mathematics
The bar graph shows the number of tickets sold each week by the garden club for their annual flower show.
How many more tickets were sold during week 1 than week 6?
A. 37 tickets B. 65 tickets C. 27 tickets D. 32 tickets
Mathematics
Factor completely.49x2 - 70xy + 25y2
A. (7x + 5y)2 B. Prime C. (7x - 5y)2 D. (7x - 5y)(7x + 5y)
Mathematics
Provide an appropriate response.If it takes x days to build a house, what is the worker's rate (in jobs per day)?
A. x jobs per day
B. 
jobs per day
C. 
jobs per day
D. x - 1 jobs per day
Mathematics