Solve the variation problem.The pressure of a gas varies jointly as the quantity of the gas (measured in moles) and the temperature and inversely as the volume of the gas. Suppose that the pressure of a particular gas is 
(kPa) when the quantity is 
the temperature is 
and the volume is 
Find the pressure of that gas when the number of moles is 9,
the temperature is 
and the volume is 
A. 1170 kiloPascals
B. 2160 kiloPascals
C. 1125 kiloPascals
D. 2250 kiloPascals
Answer: C
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Solve the problem.Mendel found that flower color in certain pea plants obeyed this scheme: Pure red crossed with pure white produces red. When pure red (RR) and pure white (rr) parents are crossed, the resulting Rr combination (one of each gene) produces second generation offspring with red flowers, since red is dominant. Suppose one of these second generation Rr flowers is crossed with a pure red. What is the probability that the resulting plant will have white flowers?
A. 0 B. 0.75 C. 0.25 D. 0.5
Use the order of operation to simplify: (6 2) + ] + }.
a. 4 b. 8 c. 5 d. 1
Multiply and simplify.
? 
A. 
B. 
C. 
D. 
Solve using the substitution method. Use a graphing calculator to check your answer. 6x - 3y = 07x + 8y = 92
A. (4, 8) B. (-8, -3) C. (-4, 8) D. No solution