Indicate whether the statement is true or false.
is a rational number
A. True
B. False
Answer: B
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Solve the problem.If x is the hydrogen ion concentration of a sample of water, then the pH of that water sample is 
If the pH of the water from one lake is 4.9 and the pH of the water from a second lake is 6.8, how many times greater is the hydrogen ion concentration of the second lake than the hydrogen ion concentration of the first lake? Round your answer to the nearest hundredth.
A. 5.26 B. 24.42 C. 0.01 D. 79.43
Divide. Express the quotient in lowest terms.
÷ 
A. 3
B. - 3
C. - 
D. - 
Solve.In order to buy a $20,000 car, you put down $2500 and take out a loan on the balance. To pay off the loan, you pay $359.72 per month for the following 72 months. How much more will you end up paying for the car than the original price of $20,000? Round your answer to the nearest dollar.
A. $5900.00 B. $25,900.00 C. $28,400.00 D. $8400.00
Find the indicated term.a = 4, r = -3 ; 5th term
A. 324 B. 81 C. 2916 D. -972