1) a dealer sold 112 cars during the month of may and 96 during the month of june. what was the percentage of the decrease?
2) at an evening performance, 85% of the seats in a movie house was occupied. if 34 people attended this performance, what was the seating capacity of the movie house?
3) a merchant sold articles of clothing at 140% of what he paid for them. what did he pay for an article that he sold for $84?
4) a family spent 486 a week for food. this was 20% of its weekly income. what was its weekly income?
5) an agent sold 250 boxes of apples at $6.50 each. he charged a commission of 5%. what was his commission?
6) at the rate of $0.80 per $100, how much does it cost to insure a car against fire and theft for $1,650?