Approximate the area under the curve and above the x-axis using n rectangles. Let the height of each rectangle be given by the value of the function at the right side of the rectangle.f(x) = 2x2 + x + 3 from x = -2 to x = 1; n = 6
A. 11
B. 13
C. 7
D. 9
Answer: B
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Solve the problem.Water is steadily pumped out of a flooded basement. Let v be the volume of water (in thousands of gallons) that remains in the basement t hours after water begins to be pumped. A linear model is shown. How much water was in the basement before any water was pumped out?
A. 32 thousand gallons B. 6 Thousand gallons C. 28 thousand gallons D. 30 thousand gallons
Evaluate the sum. Round to the nearest hundredth, if necessary. 
A. 2 B. -62 C. 54 D. 62
Solve the absolute value equation or indicate that the equation has no solution.|x - 2| - 5 = 2
A. {9} B. {-5, 9} C. {-9, 5} D. ?
Solve.A city is growing at the rate of 0.7% annually. If there were 3,860,000 residents in the city in 2007, find how many (to the nearest ten-thousand) are living in that city in 2012. Use 
.
A. 10,420,000 B. 4,030,000 C. 4,000,000 D. 360,000