A pipe is at least 21 feet long and you want to cut it into 3 pieces. The second piece is to be twice as long as the first piece and the third piece is to be 1 foot longer than the second piece. What is the minimum length of the first piece?

Jackie purchased 3 bottles of water and 2 cups of coffee for a family for $7.35. brian bought 4 bottles of water and 1 cup of coffee for his family for $7.15. how much does each bottle of water cost? how much does each cup of coffee cost? i need this done

Julie goes to the sports store and spends $40.50 before tax. she buys a pair of shorts for $21.75 and 3 pairs of socks that each cost the same amount. how much does each pair of socks cost? $$

Whit h equation best represents this situation the number 98 increased by an unknown number equal to 120