Solve the problem.Scot and Elizabeth recently built a rectangular garden measuring 40 feet by 50 feet. They want to add a paverstone walkway of uniform width around all sides of the garden. How wide can they make the walkway if they purchased enough stones to cover 1000 square feet?
A. 50 ft
B. 10 ft
C. 62.5 ft
D. 5 ft
Answer: D
Mathematics
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Estimate the value of the quantity.The table gives dye concentrations for a cardiac-output determination. The amount of dye injected was 
Plot the data and connect the data points with a smooth curve. Find the area under the curve using rectangles. Use this area to estimate the cardiac output.
Dye concentration (mg/L)
Time (sec)
A. 18.9 L/min B. 9.4 L/min C. 381.6 L/min D. 0.2 L/min
Mathematics
Calculate, if possible.(-9.7)(0)
A. -1 B. -9.7 C. 9.7 D. 0
Mathematics
Solve the equation.
x + 5 = 11
A. 
B. 
C. 15
D. 30
Mathematics
Perform the indicated operations.
A. 30 B. 15 C. 16 D. 17
Mathematics