Write the phrase as a mathematical expression. Use x as the variable.The quotient of some number and 20
A. 
B. 20 + x
C. 20x
D. 20 - x
Answer: A
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Use the multiplication property of equality to solve the equation. 8x = 24
A. 24 B. 16 C. 3 D. 8
Use a truth table to determine whether the argument is valid.p ? qq p
A. Valid B. Invalid
Solve the problem.Edward's real estate tax bill was $7450 last year. If he paid $8100 this year, what was the percent increase on his taxes? Round your answer to the nearest hundredth of a percentage point.
A. 80.70% B. 91.98% C. 8.72% D. 8.02% E. 4.35%
Solve the problem.A retired couple has $130,000 to invest to obtain annual income. They want some of it invested in safe Certificates of Deposit yielding 5%. The rest they want to invest in AA bonds yielding 12% per year. How much should they invest in each to realize exactly $12,100 per year?
A. $80,000 at 12% and $50,000 at 5% B. $90,000 at 12% and $40,000 at 5% C. $80,000 at 5% and $50,000 at 12% D. $70,000 at 5% and $60,000 at 12%