17. My friend can dive 50 feet below sea level. What integer represents this situation? a 50 b. 50 c. 500 d. 15 18. What is the product of 4 and 3? a. 12 c. 21 d.-21 19. What is the sum of -522 and 5207 b.-2 c. 1042 d. -1042 20. What is the sum of -10 and -20? a 30 b.-30 d. 34 21. When 9 is added to -8. the answer is 0.33 c. 17 22. What is 37 subtracted from -957 a.+132 b.-132 c. 135 d. -135 23. What is the product of -8 and 37 b. 24 0.8 d. 3 24. in 5 times 4 divided by 10 plus 8 minus 7, which number will you solve first? a 10+8 b. 52 08-7 d. 4+10 25. In the expression 2 + 5 X 8, which operation will you do first? a. Addition b. subtraction c. multiplication d. division 26. In 5+(4x31-9, which operation will you do last? a. Addition b. subtraction c. multiplication d. division