Two hats are 1/3 of the group how many hats are in the whole group

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning

Atemperature of 1.64◦f corresponds to answer in units of ◦c.

Askate shop rents roller skates as shown on the table below. which graph and function models this situation?