Evaluate.
3.23
+52
- 18 ÷6 A.25 B.31 C.40 D.46

Which expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression (-1+i)+(21+5i)+0

What is always true about a positive integer raised to a negative odd power?

If each bricks costs and he can only buy one brick how much will it cost him to get the material to put around the outside of his garden?