Question

A school reserved a banquet hall for the spring dance, in addition to a $100 deposit, each couple must pay $20. If the total cost of the banquet hall is $1,140, write and solve an equation to find the number of couples attending the spring dance.

Answer 1

divide $1140 by $100 and ask yourself "How many people can reach $1140 with $100 each"

I hope I answered your question! PEACE ^_^ :-) :)