Estimate the sum or difference by rounding each number to the nearest hundred. 5,129 7,985+ 3,942
A. 17,100
B. 16,000
C. 18,000
D. 17,000
Answer: D
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Provide an appropriate response.Find the perimeter and the area of the given figure. Use the formulas P = 2(b + s) and A = bh.
A. 72 in.; 40 in2 B. 40 in.; 72 in2 C. 40 in.; 96 in2 D. 36 in.; 72 in2
Provide an appropriate response.State the property of real numbers that is being used: 2(ab) = (2a)b
Fill in the blank(s) with the appropriate word(s).
Write a linear inequality that describes the shaded region.y = -2
A. y ? -2 B. x ? -2 C. y ? -2 D. x ? -2
Solve the problem.Suppose f(x) = 33.6 + 1.4log (x + 1) models salinity of ocean water to depths of 
at a certain latitude. x is the depth in meters and f(x) is in grams of salt per kilogram of seawater. Approximate the depth (to the nearest tenth of a meter) where the salinity equals 38.
A. -0.9 meters B. 1390.5 meters C. -1.0 meters D. 1388.5 meters