A man is 6 feet tall and casts a 5 foot shadow. At the same time, a tree casts a 12 foot shadow. What is the height of the tree?

Afitness center has 2 membership plans one has a low dollar sign up fee of 15 dollars and costs 38 dollars per month to join. a second plan has a higher sign up fee of 78 dollars but a lower monthly fee of 31 dollars for what number of days of the month is the coat the same