Translate the description as an algebraic expression:
twice the difference of c and 19

2(c - 19)

Step-by-step explanation:

Twice the difference of c  and 19

2 (c - 9)

When it says "twice the difference.." it means you will times the difference of c - 19 by 2

Difference of c and 19=c-19

Twice of (c-19)=2(C-19).

So, the final answer is 2(c-19).

i would say c is the best answer, hope it's right!

good luck! =)

cutie~