Find the acute angle, in degrees, between the lines.3x - y = 8 and 2x + y = 16
A. 30°
B. 75°
C. 45°
D. 60°
Answer: C
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Solve the problem.Four out of every ten drivers missed at least three questions on their driving test. What percent missed less than three?
A. 40% B. 60% C. 4% D. 6%
Subtract. Write the answer in lowest terms as a mixed number.
A. 17
B. 18
C. 17
D. 16
Use the bar graph to find the requested probability.The bar graph below shows the number of boys born at a certain hospital on New Year's Day in various years. 
If one of these boys is randomly selected, what is the probability that he was born in 1981?
A. 
B. 
C. 
D. 
Solve the problem.The pressure of a gas varies jointly as the amount of the gas (measured in moles) and the temperature and inversely as the volume of the gas. If the pressure is 
(kiloPascals) when the number of moles is 6, the temperature is 
, and the volume is 
, find the pressure when the number of moles is 3, the temperature is 
,
and the volume is 
.
A. 660
B. 1584
C. 1452
D. 726