Use an equation to solve the problem.The average price of homes in one neighborhood decreased 4% since last year, a drop of $3,500. What was the average price of a home last year?
A. $84,500
B. $89,500
C. $86,500
D. $87,500
E. $83,500
Answer: D
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A statement is made about correlation. State whether the correlation is positive or negative and whether the correlation is most likely due to coincidence, a common underlying cause, or a direct cause.People who take more vacations score higher on standardized tests.
A. Positive correlation; coincidence B. Positive correlation; direct cause C. Negative correlation; common underlying cause D. Positive correlation; common underlying cause
Solve the problem.A sprinkler system is used to water two areas. If the total water flow is 480 L/h and the flow through one sprinkler is 25% as much as the other, what is the flow in each at the nearest hundredth?
A. 461.54 L/h, 18.46 L/h B. 461.54 L/h, 17.78 L/h C. 18.46 L/h, 17.78 L/h D. 461.54 L/h, 19.20 L/h
Use the table to find the probability.The following table indicates the preference for different types of soft drinks by three age groups.
If a person is selected at random, find the probability that the person is over 40 and drinks cola.
A. 
B. 
C. 
D. None of the above is correct.
Solve the problem.An airplane flies from Metro City to Gotham with a tailwind that increases its normal speed by 
On the return trip, the plane must fly against this wind, which decreases its normal speed by the same amount. The flight from Metro City takes 3.61 hours and the return trip takes 
How far is it from Metro City to Gotham?
A. 1500 mi B. 1300 mi C. 1600 mi D. 1420 mi