Solve the problem.Given below are the winning times for the men's 100 meter Olympic freestyle for various years.
Let W represent the winning time (in seconds) at t years since 1971. Find an equation of a linear model to describe the data.
What will be an ideal response?
W = -0.17t + 55.55; Answers may vary.
Mathematics
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Solve the problem.A painter can finish painting a house in 5 hours. Her assistant takes 7 hours to finish the same job. How long would it take for them to complete the job if they were working together?
A. 6 hours
B. 4 hours
C. 
hour
D. 2
hours
Mathematics
Consider the points plotted in the graph below.
Give the coordinates for point A.
A. (-5, 4) B. (4, -5) C. (4, 5) D. (5, 4)
Mathematics
Find the LCM.24, 18, and 28
A. 504 B. 672 C. 252 D. 168
Mathematics
Solve.A storehouse stores 270 different inventory items. 
of these items are perishable. How many of the inventory items are perishable?
A. 212 items B. 220 items C. 54 items D. 216 items
Mathematics