Solve.The volume V of a gas varies inversely as the pressure P on it. The volume of a gas is 
under a pressure of 
What will be its volume under a pressure of 40 kg/cm2?
A. 280 cm3
B. 69 cm3
C. 311 cm3
D. 63 cm3
Answer: D
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Find the exact value of the expression.cos 
cos 
+ sin 
sin 
A. 
B. 
C. 
D. 1
Solve.Janine and Thor are both running for class president. Janine goes down a hallway in the school and puts a sticker on every fourth locker. Thor goes down the same hallway, putting one of his stickers on every fifth locker. If there are 130 lockers in the hallway, how many have both students' stickers?
A. 13 B. 26 C. 6 D. 20
Find the equation for the line described.the line having y-intercept (0, 2) and perpendicular to 
Fill in the blank(s) with the appropriate word(s).
Solve the problem.Assume that a savings account earns interest at the rate of 2% compounded monthly. If this account contains $1000 now, how many months will it take for this amount to double if no withdrawals are made?
A. 408 months B. 12 months C. 417 months D. 450 months