Solve.Of the 8760 hr in a year, most television sets are on for 3504 hr. What percent is this?
A. 60%
B. 45%
C. 40%
D. 80%
Answer: C
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Calculate the circulation of the field F around the closed curve C.F = xy2i + x2yj; curve C is the counterclockwise path around C1 ? C2 : C1: 
0 ? t ? ?C2: r(t) = ti , -8 ? t ? 8
A. 128 B. 64 C. 0 D. 8
Use the Pythagorean Theorem to find the missing length in the right triangle. Use a calculator to find square roots, rounding, if necessary, to the nearest tenth.
A. 596 cm B. 298 cm C. 17 cm D. 24.4 cm
Graph.f(x) = - 
x - 6
A. 
B. 
C. 
D. 
Use the circle graph to solve the problem.The circle graph shows the percent of the total population of 51,800 of Springfield living in the given types of housing.
Find the number of people who live in single family houses. Round your result to the nearest whole number.
A. 20,720 people B. 40 people C. 18,130 people D. 31,080 people