Cookie sales: 12 weeks divided by 2 weeks = 6 weeks x $360 = $2,160
Car wash: 12 weeks divided by 3 weeks = 4 weeks x $450 = $1,800
Recycling: 12 weeks divided by 4 weeks = 3 weeks x $600 = $1,800
Yard work: 12 weeks divided by 2/5 weeks = 30 x $80 = $2,400