Solve the application problem by adding integers.The temperature at 3 p.m. on January 19 was -6° Fahrenheit. By 10 p.m. the temperature had risen 21 degrees. Find the temperature at 10 p.m.
A. -15°
B. -27°
C. 27°
D. 15°
Answer: D
Mathematics
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B. 
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Find the indicated cardinal number.Find n(A) given that n(A × B) = 22 and n(B) = 2.
A. 11 B. 20 C. 2 D. 24
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Find the area of the region specified in polar coordinates.one petal of the rose curve r = 9 cos 3?
A. 
?
B. 
?
C. 
?
D. 
?
Mathematics
Find the apportionment asked for.A small country consists of seven states; there are 160 seats in the legislature that need to be apportioned among the seven states; and the population of each state is shown in the table. 
Find the apportionment for state D using Jefferson's method.
A. 23 B. 26 C. 24 D. 25
Mathematics