MATH
posted by A .
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? Answer336
2. Estimate the result in the following division problem. (Remember to round divisors to the nearest ten and dividends to the nearest hundred.) Answer19
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? Answer38,400,000,000
5. Change 3 2/5 to an improper fraction
Answer17/5

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