Jamie is joking up a small mountain at a constant rate of 300 feet/hour. He must climb 1,500 feet to reach peak. After that, he hikes down at the same rate to the base of the mountain

Can someone me with the property questions for 12 13 and 14 plz

Find the maximum value of p= 4x + 5y subject to the following constraints :

The height of a birch tree, f(x), in inches, after x months is shown in the graph below. how much does the birch tree grow per month, and what will be the height of the birch tree after 10 months? a. the birch tree grows 1 inch per month. the height of the birch tree will be 16 inches after 10 months. b. the birch tree grows 2 inches per month. the height of the birch tree will be 26 inches after 10 months. c. the birch tree grows 3 inches per month. the height of the birch tree will be 36 inches after 10 months. d. the birch tree grows 2 inches per month. the height of the birch tree will be 24 inches after 10 months.