Rationalize the denominator. Assume that all variables represent positive real numbers.- 
A. - 
B. - 
C. - 
D. - 
Answer: B
Mathematics
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The following table shows the total cost C of joining a music club and downloading s songs. Find a linear model for the total cost as a function of songs downloaded. Round the slope to three decimal places, if necessary. x 2 8 14 20 y 12.16 16.71 21.26 25.81?
A. 
B. ?
C. ?
D. ?
Mathematics
Solve the problem.David earns $9 per hour for a 40-hour work week and time-and-a-half for overtime. One week he worked 50 hours. Find his gross pay for the week.
A. $675.00 B. $495.00 C. $360.00 D. $450.00
Mathematics
Evaluate the expression by hand, if possible.log
A. 12
B. 
C. 3
D. 
Mathematics
Estimate the surface area of the golf green shown in the figure using the midpoint rule.
?
?
A. 636 B. 159 C. 1431 D. 1561 E. 644
Mathematics