hello everyone i have a math review and i want the RIGHT answers so i can check my work. And so I know that I'm doing each problem right thanks.

#1. Is the number 75 prime,composite, or neither? (i say composite?)

#2. Is the number 37 prime,composite, or neither? (i say prime?)

#3. Is the number 1 prime,composite, or neither? (i say neither?)

#4. Is the number 42 prime,composite, or neither? (i say composite?)

Perform the indicated operation.

#5. 15/18 x 12/5 (i say its 2?)

#6. 3 4/7 x 2 1/5 (i say its 55/7?)

#7. 1 4/11 divide 3 (i dont know?)

#8. 5/8 divide 2 1/3 (i dont know?)

#9. 3 1/3+4 7/8+2 5/6 (i dont know?)

#10. 4/7+3/7+2 1/4 ( i say 3 1/4?)

#11. 5/9-1/3 ( i say 16/27?)

#12. 5 7/8-3 1/2 ( i say 2 3/8?)

**Answer the following problems.**

#13. A utility stock listed at 18 7/8 on Wednesday rose 2 1/2 points on Thursday and dropped 1 5/8 on Friday. What was it worth when the market closed on Friday? (i say 19 3/4?)

#14. Marco added 3 3/4 cup of water to a bowl. He then decided that was too much, so he took a 1/4 cup measuring cup and dipped it into the bowl three times, taking out the water each time, full to the top of the measuring cup. How much was left in the bowl? ( i say 3 cups?)

#15. Write 8.064 as a fraction. Do __not__ write in lowest terms.

#16. Write 0.0345 as a fraction. Do __not__ write in lowest terms.

Perform the indicated operation(s).

#21.(0.00239x10000) divide 1.5

#22. 4501.2 x 0.003

#23. write 7.8% as a decimal.

#24. write 82.3% as a decimal.

#25. write 2 3/8 as a decimal.

#26. write 15 2/3 as a decimal.

#27. write 3.45 as a percent.

#28. write .012 as a percent.

If anyone knows this stuff let me have it to check my answers because i dont want to flunk. thank you...