Solve the problem.Regrind, Inc. regrinds used typewriter platens. The cost per platen is $2.30. The fixed cost to run the grinding machine is $162 per day. If the company sells the reground platens for $4.30, how many must be reground daily to reach the break-even point?
A. 70 platens
B. 24 platens
C. 81 platens
D. 54 platens
Answer: C
Mathematics
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Solve the equation.log (5x) = log 4 + log (x - 3)
A. {12}
B. 
C. {- 12}
D. 
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Solve.The radius needed to create a sphere with a given volume V can be approximated by the equation r = 0.62(V)1/3. Find the radius of a sphere with a volume of 27 cubic meters. Round the answer to the nearest hundredth.
A. 5.58 meters B. 3.22 meters C. 1.86 meters D. 2.56 meters
Mathematics
Find the slope of the line and sketch the graph.-5y = 3x
A. m = - 
B. m = - 
C. m = 
D. m = 
Mathematics
Write the rational expression in lowest terms.
A. 
B. 
C. 1
D. -1
Mathematics