Twelve more than four times the difference of a number and nine. Translate into an algebraic expression. please someone help

4(x-9) + 12

Step-by-step explanation:

okay, so you need to know twelve more that four times the difference of a number and nine. In this type of thing, you want to read it from back to front. So, let's start with the difference of a number and 9. you don't know the number, so let's use x. difference indicates subtraction,  and because the unknown number (x) comes before 9, we would write x-9. because there is more later on, we would put this in parentheses. (x-9). now lets look at four times. this means it wants to multiply four by the (x-9). we know this because it says times, and it says after that what we previously worked out. well, to say it is multiplied by the parentheses, we would simply write 4(x-9). now, lets move on to the last part. it says twelve more. well, if you get twelve more chocolates, doesn't that mean 12 chocolates were added to your collection? so, this implies addition. because this is the end, we are going to add 12 after the 4(x-9). so, we would write 4(x-9) + 12. I hope this helps. have a great day!  

7. d. 64

8. i. 32

9. c. 125

10. j. none of the above

11. d. 81

12. i. 216

13. e. none of the above

14. g. 240

15. e. none of the above

16. g. 32

17.   e. none of the above

for this pair of functions g(x)=x-2 and f(x)=|x| is (g o f)(a)= |a| -2

step-by-step explanation:

g(x)=x-2

f(x)=|x|

(g o f)(a)=?

(g o f)(x)=g(f(x))

(g o f)(x)=g(|x|)

(g o f)(x)=|x|-2

(g o f)(a)=|a|-2