4318230 can you help me

1. 15

2. 3

3. 5

4. 2

5. 3/4+5/8. 1/2+1/8

6. 1/4

7. 3/8

look at the picture.

y-intercept for the function on a picture is 4 → point (0, 4).

y-intercept for the function

is for x = 0. substitute:

y-intercept is 8 → point (0, 8).

x= cost per bracelet

number of bracelets * x + shipping charge = total cost

so

9x+9=72