Solve the problem.In how many ways can a group of 8 students be selected from 9 students?
A. 9
B. 1
C. 8
D. 72
Answer: A
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Find the number of molecules in the given quantity of a compound whose molar mass is given. Express your answer in scientific notation, rounding the decimal part to the nearest hundredth.50 grams of carbon monoxide (CO); molar mass: 28.01 grams
A. 8.43 × 1026 molecules B. 1.07 × 1024 molecules C. 8.43 × 1027 molecules D. 1.07 × 1023 molecules
Solve the problem.Tony and Barb decide to buy new living room furniture worth $10,000. They make a down payment of 
Barb decides they should pay off what they owe in 30 monthly payments. Find the amount of the monthly payment at 4% add-on interest.
A. $600.00 B. $3300.00 C. $330.00 D. $9900.00
Find the distance d(A, B) between the points A and B.A = (4, 4); B = (4, -4)
A. 8
B. 7
C. 2
D. 9
Solve the absolute value inequality. Write the solution set using interval notation.6
< 5
A. 
B. 
? 
C. 
? 
D. 