Answer:
The total cost of the party (C), can be expressed as;
C=10 n+30, where n is the number of children
Step-by-step explanation:
Step 1
We can use the expression below to calculate the total cost of the party as shown;
C=F+(V×n)
where;
C=total cost of the party
F=fixed cost to design party
V=cost per child
n=number of children at the party
In our case;
F=$30
V=$10
n=n
replacing;
C=30+(10×n)
C=30+10 n
The total cost of the party (C), can be expressed as;
C=10 n+30, where n is the number of children