human
Janet takes two bus trips five days a week. If each bus trip costs her $2.20, how much would she save by buying a weekly bus pass for $20?
assistant
How many trips does Janet take in a week? ** First find the total number of trips Janet takes during the week: 2 trips/day * 5 days/week = <<2*5=10>>10 trips/week
How much does Janet spend in a week? ** Then multiply this number by the cost per trip to find her current weekly spending: 10 trips/week * $2.20/trip = $<<10*2.20=22>>22/week
How much does Janet save by buying a weekly bus pass? ** Then subtract the cost of the weekly bus pass from this number to find her savings: $22/week - $20/week = $<<22-20=2>>2
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