Decide whether A and B are inverses by calculating AB and BA.A = 
B = 
A. No
B. Yes
Answer: B
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Perform the indicated operation.Find the sum of (8 + 4n7 - 3n5) and 
A. 32n12 B. 13n7 + 6n5 + 13 C. 17n7 + 13n5 + 2 D. 13 + 6n7 + 13n5
Determine the most appropriate metric unit to go in the blank. Choose from km, m, cm, mm, L, mL, kg, g, and mg.Helen and Juan went hiking. Between the two of them they brought 8 
of water.
A. m B. g C. mg D. L E. mL
Solve the problem.A job pays a salary of 24,000 the first year. During the next 5 years, the salary increases by 4% each year. What is the salary for the 6th year? What is the total salary over the 6-year period? (Round to the nearest cent.)
A. $29,199.67; $159,191.41 B. $30,367.66; $130,016.74 C. $30,367.66; $189,559.07 D. $29,199.67; $129,991.74
Evaluate the expression 
for b = 2 and c = –6.
A) –40 B) 32 C) –32 D) 40 E) 16