Solve the problem.Lauren has traveled 
of his total trip. He has traveled 40 miles so far. How many more miles does he have to travel?
A. 8 miles
B. 6
miles
C. 48 miles
D. none of these
Answer: A
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Use a calculator to approximate the number. (Round your answer to three decimal places.)
?
?
A. 5.000.000 B. 3.487 C. 1.487 D. 2.487 E. -2.487
One model for expenditures at high schools gives the cost C, in dollars per pupil, as a function of the number n of students enrolled. The relationship is
.
?
Find the enrollment and cost that correspond to the minimum cost per pupil. Round your answers to the nearest whole number.
A. An enrollment of 1909 gives a minimum cost of $340 per pupil. B. An enrollment of 340 gives a minimum cost of $1909 per pupil. C. An enrollment of 1911 gives a minimum cost of $344 per pupil. D. An enrollment of 344 gives a minimum cost of $1911 per pupil.
Divide.8213 ÷ 9
A. 912 R5 B. 912 C. 917 D. 912 R8
Transform the polar equation to an equation in rectangular coordinates. Then identify and graph the equation.r = 4 cos ?
A. 
x2 + (y - 2)2 = 4; circle, radius 2,
center at (0, 2) in rectangular coordinates
B. 
(x + 2)2 + y2 = 4; circle, radius 2,
center at (-2, 0) in rectangular coordinates
C. 
x2 + (y + 2)2 = 4; circle, radius 2,
center at (0, -2) in rectangular coordinates
D. 
(x - 2)2 + y2 = 4; circle, radius 2,
center at (2, 0) in rectangular coordinates