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MATH

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just want to check my work on a few things....

1. Tile for a kitchen counter will cost $8 per square foot to install. If the counter measures 14 ft by 3 ft, what will the tile cost? Answer-336

2. Estimate the result in the following division problem. (Remember to round divisors to the nearest ten and dividends to the nearest hundred.) Answer-19

3. Evaluate 15 mi/h  4 h. Be sure to use the proper units. Answer 60mi

4. A computer can execute 64 instructions per microsecond. How many instructions can it execute in 10 minutes? Answer-38,400,000,000

5. Change 3 2/5 to an improper fraction
Answer-17/5

  • MATH -

    correct. On 2, I don't know problem.

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