Solve the problem. Round amounts to the nearest cent and percents to the nearest tenth of a percent.The markup on an external hard drive is $15. Find the cost of the hard drive if the markup is 20% of the cost.
A. $18.00
B. $75.00
C. $12.50
D. $3.00
Answer: B
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Provide an appropriate response.Assuming r = f(?) is continuous for 
and 
what can be said about the relative areas between the origin and the polar curves r = f(?), ? ? ? ? ?and r = 2f(?), ? ? ? ? ? ?Give reasons for your answer.
What will be an ideal response?
Solve the problem.Hooke's law is applicable to idealized (linear) springs that are not stretched or compressed too far. Consider a nonlinear spring whose restoring force is given by F(x) = 17x - 0.2x3, for |x| ? 9. How much work is done in compressing the spring from its equilibrium position (x = 0) to x = -2? Round to two decimal places when appropriate.
A. 360.45 J B. 720.9 J C. 64.8 J D. 33.2 J
Graph the function.y = cos 8x
A. 
B. 
C. 
D. 
Find the value of the logarithm without using a calculator.log9
A. 81 B. -3 C. -81 D. 3