Answer:

Step-by-step explanation:

Solving for brackets and multiplying.

Adding the numbers in the denominator.

Dividing.

Answer:
x = t - 
Step-by-step explanation:
Given
t = x +
( isolate x by subtracting
from both sides )
t -
= x
So 3 is where the charging starts and $7 per 6 people-
$3+$7(6)=
$3+$42=
$45 is the cost for a group of 6.