Solve the problem.A company builds pole buildings. They only construct the outer shell and hire subcontracters for any interior framing and finishing. The total number of hours of labor y required to build the outer shell and the area x in square feet of the building is given for 5 buildings. 
Find the least squares line through the origin.
A. y = 0.1104x - 4.2238
B. y = 0.1180x
C. y = 0.1086x
D. y = 0.1067x
Answer: C
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Evaluate the integral.
A. - 96 B. - 24 C. - 72 D. 144
Simplify the fraction.
A. 
B. 
C. 8
D. 
The stack plot below shows the value of each of Danny's investments. The stack plot contains three regions. The uppermost unshaded region represents the value of Danny's investment in individual stocks. The center shaded region represents the value of Danny's investment in mutual funds and the bottom region in black represents the value of Danny's investment in a CD. The thickness of a region at a particular time tells you its value at that time. 
Use the graph to answer the question.In year 0, approximately what percentage of Danny's total investment was in the CD?
A. 20% B. 30% C. 15% D. 25%
Solve the problem.On the day when Julie left for her vacation, the function that converted U.S. dollars to British pounds was f(x) = 0.54521x, where x is the number of U.S. dollars and f(x) is the number of British pounds. Find the inverse function.
A. f-1(x) = 
B. f-1(x) = 
C. f-1(x) = 
D. f-1(x) = x - 0.54521