Answer:
The expression for the total cost is given as
y=30+19.99x
Explanation:
Initialization of variables
let y be the total charges
and let x be the number of hours
given that the parties fee is $30
and $19.99 per hour
we can model the expression as '
y=30+19.99x
Therefore the expression for the cost is given as
y=30+19.99x