Answer:
Equation:
c = s × 7
Step-by-step explanation:
If the cost of the school play is $7, then the equation would be:
c = s × 7
If any amount of people show up to the school play, the number of people will be s, multiplying by 7 to get the total cost of c.
(For an example, if a family of 6 showed up to the school play, then the total cost would be $42.
In this equation, s = 6 and c = 42.)
Dependent variable: s
Independent variable: c