a triangle has a base of 15 inches and the height of 11 inches . What is the area of the triangle using the formula A= 1/2 bh

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