Question

Use the properties of real numbers to rewrite the expression. 2/5 * (-7) * 5/2

a. 1
b. -1
c.5
d. -7

Answer 1

For this case we have the following expression:

`(2)/(5)*(- 7)*(5)/(2)`

Using the associative property we can rewrite the expression in the following way:

`((2)/(5)*(5)/(2))*(-7)`

Finally, simplifying we have:

`(1) (- 7)`

`-7`

Answer:

Rewriting the expression we have that the result is:

d. -7