Question

"Reference this problem to answer the 5 questions that follow it (Each question is worth 1 point):"

Answer 1

B, E

Explanation:

Given expression

`-2.5(1-2n)-1.5n`

First, use the distributive property:

`-2.5(1-2n)-1.5n\\ \\=-2.5\cdot 1-2.5\cdot (-2n)-1.5n\\ \\=-2.5+5n-1.5n`

Use distributive property once more:

`-2.5+5n-1.5n\\ \\=-2.5+n(5-1.5)`

So, option E is correct.

Now,

`-2.5+n(5-1.5)\\ \\=-2.5+n\cdot 3.5\\ \\=-2.5+3.5n`

Thus, option B is correct