Solve the problem. Round to the nearest tenth if necessary.By switching service providers, a family's telephone bill decreased from about $50 a month to about $47. What was the percent of decrease?
A. 6.4%
B. 6%
C. 7%
D.
| 3% |
Answer: B
Mathematics
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Write an inequality involving the variable x that describes the set of numbers graphed.
A. 3 ? x ? 7 B. 3 ? x < 7 C. 3 < x < 7 D. 3 < x ? 7
Mathematics
Use the zero-exponent rule to simplify the expression.18y0
A. 18 B. 18y C. 0 D. 1
Mathematics
Determine whether the function is even, odd, or neither.y = 
A. Neither B. Odd C. Even
Mathematics
Solve the problem and answer the question.A barge takes 4 hours to move (at a constant rate) downstream for 40 miles, helped by a current of 3 miles per hour. If the barge's engines are set at the same pace, find the time of its return trip against the current.
A. 10 hr B. 80 hr C. 7 hr D. 4 hr
Mathematics