Calculate.81.9 - 2.2(0.42 + 20.7)
A. 35.436
B. 128.364
C. 100.82
D. 60.276
Answer: A
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Solve. Round to the nearest hundredth if necessary.41.6 is what percent of 130?
A. 3.2% B. 320% C. 0.32% D. 32%
Decide whether the equation is conditional, an identity, or a contradiction. Give the solution set.2(25t + 20) = 10(3t + 10)
A. Conditional; {3} B. Identity; {all real numbers} C. Conditional; {-7} D. Contradiction; ?
Solve the problem.Don James wants to invest $51,000 to earn $4740 per year. He can invest in 
bonds paying 
per year or in a Certificate of Deposit (CD) paying 
per year. How much money should be invested in each to realize exactly $4740 in interest per year?
A. $23,000 in B-rated bonds and $28,000 in a CD B. $24,000 in B-rated bonds and $27,000 in a CD C. $28,000 in B-rated bonds and $23,000 in a CD D. $27,000 in B-rated bonds and $24,000 in a CD
Find the logarithm.log8 
A. 64 B. -64 C. -3 D. 3