Solve the problem.An entomologist pays Fred $0.86 for each butterfly he brings in. Find Paul's gross earnings if he brings in 80 butterflies.
A. $61.92
B. $75.68
C. $80.86
D. $68.80
Answer: D
Mathematics
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(8, -14) and (14, 19)
A. - 
B. 
C. 
D. 
Mathematics
Solve the problem.The function A = A0e-0.00866x models the amount in pounds of a particular radioactive material stored in a concrete vault, where x is the number of years since the material was put into the vault. If 500 pounds of the material are placed in the vault, how much time will need to pass for only 193 pounds to remain?
A. 110 yr B. 220 yr C. 120 yr D. 115 yr
Mathematics
Solve the equation.
= 
A. x = 32 B. x = 4 C. x = 128 D. x = 16
Mathematics
Plot the point with the given polar coordinates.
A. 
B. 
Mathematics