What kind of operation is this ? it just says x and a nine.
I would have loved to help but you didn’t attach the picture as far as I’m concerned or I don’t see it sorry ^^;;
The answer to this equation is 5.
30=5(x+1)
30÷5=6
6=x+1
6-1=5
x=5
Let:
x = Pastries ordered
y = Cost of order

For each pastry Cole ordered, the cost of the order increased by a fixed amount of $1.55