Solve the problem.A marina owner wishes to estimate a linear function that relates boat length in feet and its draft (depth of boat below water line) in feet. He collects the following data. Let boat length represent the independent variable and draft represent the dependent variable. Use a graphing utility to draw a scatter diagram and to find the line of best fit. What is the draft for a boat 60 ft in length (to the nearest tenth)? 
A. 10.5
B. 9.7
C. 10.3
D. 15.7
Answer: B
Mathematics
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Solve the problem.John owns a hot dog stand. His profit, in dollars, is given by the function 
where x is the number of hot dogs sold. What is the most he can earn?
A. $99 B. $49 C. $120 D. $106
Mathematics
Add or subtract.2.4 - (-1.6)
A. 0.8 B. 4 C. -0.8 D. -4
Mathematics
Provide an appropriate response.If f(a) = 3 and f(x) is increasing on the interval [a, b], then which method of estimating the area under the graph of f(x) and above the x-axis will yield the highest value? Assume that n = 10 in all cases.
A. Using midpoints B. Using left endpoints C. Cannot be determined D. Using right endpoints
Mathematics
Write the shaded area in the figure as a mixed number and as an improper fraction.
A. 4
; 
B. 3
; 
C. 3
; 
D. 4
; 
Mathematics