Answer:
15.00+(0.25)x=c
Step-by-step explanation:
15.00+(0.25)x=c 15 is the flat out fee plus the 0.25 times the amoutn f miles then add 15+ the miles and you get the answer
4.83
8x-11=2x-7+25
8x=2x+29
6x=29
divide by 6 on both sides
x=4.833333333
Well, we know is centered at the origing, thus h,k are just 0,0.
using the provided vertex and focus point, gives us a distance for "a" of 9 and a distance for "c" of 15, check the picture below.

Multiply the second equation by 3
-4x+9y=9
3x-9y=-18
add the equations together
-x=-9 Simplify
x=9
now plug in your x value
(9)-3y=-6 Simplify
-3y=-6-9
-3y=-15
y=5
Steps:
1.9s + 6 = 3.1 - s
2.9s + 6 = 3.1
2.9s = -2.9
s = -1