Students are raising money for a field trip by selling scented candles and specialty soap. The candles cost $0.75 each and will be sold for $1.75, and the soap costs $1.25 per bar and will be sold for $3.25. The students need to raise at least $200 to cover their trip costs. a. Write an inequality that relates the number of candles c and the number of bars of soap s to the needed income.