1. a commercial says," a widget sells for $20. if you buy now, we will discount your widget 15%. but wait, if you buy in the next five minutes, we will give a second widget for free." you take ad vantage of this terrific deal. what will you pay per widget?
2. the scale on a set of house plains is 1/4 inch= 1 foot. how long is a wall on a room that measures 3 1/2 inches on the drawing?
3. juan's father agreed to pay 1/3 of the cost of juan's new bike. juan's father paid $37. how much did the bike cost?