Ineed in the setup teacher wants a guess and check table for the word problem. just the set up i need on .
a wood board 156 cm long is cut into three pieces. the two longer pieces are the same length and are 15 cm longer than the shortest piece. how long are the three parts?

It costs $4.50 per person for 2 people and $3.00 per person for 3 people to go on a horse carriage ride. using c to represent the cost per person and n to represent the number of people, which equation models this relationship? a. c + n = 7.50 b. 2n + 3n = 7.50 c. cn = 9.00 d. 9.00n = c