Solve problems by subtracting whole numbers.Consider the following population data.Population of Four States from 1970 to 2010 
How much did the population of state C increase from 1980 to 2000?
A. 348,767
B. 881,761
C. 348,667
D. 881,661
Answer: A
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Estimate the value of the quantity.The table shows the velocity of a remote controlled race car moving along a dirt path for 8 seconds. Estimate the distance traveled by the car using 8 subintervals of length 1 with left-end point values.
A. 119 in. B. 104 in. C. 228 in. D. 114 in.
Find the vertex, the focus, and the directrix of the parabola.(y - 1)2 = 12(x - 2)
A. V: (2, 1); F: (5, 1) ; D: x = -1 B. V: (2, 1); F: (-1, 1); D: x = 5 C. V: (-2, -1); F: (1, -1); D: x = -5 D. V: (1, 2); F: (4, 2); D: x = -2
Solve the application. Write an expression to describe the situation and simplify the expression for the final answer.At 1 p.m., the temperature was 104°F. At 5 p.m., the temperature had steadily dropped to 48°F. How many degrees did the temperature drop per hour?
A. 
= 14; The temperature dropped 14°F per hour.
B. 
= 28; The temperature dropped 28°F per hour.
C. 
= 76; The temperature dropped 76°F per hour.
D. 
= 38; The temperature dropped 38°F per hour.
Solve the problem.The relationship between the list price, x, in thousands of dollars, and the dealer invoice price, y, also in thousands of dollars, for pickup trucks can be approximated by the linear equation 
Use this equation to predict the dealer invoice price for a pickup truck with a list price of 21.0 thousand dollars.
A. 25.427 thousand dollars B. 22.523 thousand dollars C. 15.015 thousand dollars D. 17.835 thousand dollars