Solve the problem.The sum of the ages of Art, Ben, and Cal is 59. Art is 1 year older than Cal and Cal is 1 year younger than Ben. Which of these people were teenagers 7 years ago?
A. Art, Ben, and Cal
B. Ben
C. Art
D. Art and Ben
Answer: D
Mathematics
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Evaluate the integral.
A. 
(e2 - e)2
B. 
(e - 1)2
C. 
(e - 1)2
D. 
(e2 - e)2
Mathematics
Find the area or volume.Find the volume of the solid generated by revolving the region under the curve 
from 
to 
about the 
A. 7?
B. 7
C. 
?
D. 14?
Mathematics
Solve the problem.Doctors predict that by administering a vaccine, the number of new cases of a certain childhood disease will decrease by half each year. If 1100 people were afflicted with the disease in 2010, estimate the number of new cases in 2015. (Round to the nearest whole number, if necessary.)
A. 17 new cases B. 69 new cases C. 138 new cases D. 34 new cases
Mathematics
Find the effective rate of interest.5% compounded continuously
A. 5.127% B. 5.089% C. 5.451% D. 5.374%
Mathematics