Question

Translate the sentence into an inequality. Twice the difference of a number and 4 is at most -21. Use the variable x for the unknown number.

Answer 1

`2x-8\leq -21`

Explanation:

At Most=
`\leq`

Twice the difference of a number and 4:

`2(x-4)`

`2x-8`

There you have it!

P.S. Might be wrong. A bit late for me.