Can anyone do these math (pre-algebra) problems for me please?

cynthia sanchez

New member
1. Evaulate r - s if r = 23 and s = 18.

2. Rewrite the expression (9 × p) × 2 using the Communtative Property.

3. Find the product of 4/5 and 5/12.

4. Find the product of -5 and 4x.

5. Evaulate the expression ac + bc if a = -2, b = 5, and c = 3.

6. Find the average of the test scores: 55, 75, 75, 70, 75.

7. Which number belongs to the set of rational numbers and the set of integers?
7.3, 1/2, 5 2/3, -8

8. What is the simplified form of (15z + 7) - 3z?

9. Solve -48 = 6m.

10. Solve a/3 = -21.

11. Which expression is equivalent to 5(n + 2) - 3(n + 2)?
2n + 4, 2n + 16, 2n, 2n - 4

12. Replace (circle goes here) with the correct sumbol to make 7/8 (circle) 5/6 a true sentence.
<, =, >, ×


Thanks a trillion!!! :)
 
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