If the simple interest on $6000 for 2 years is $960 then what is the interest rate

Plot the points (0,6), (3,15.8), and (9.5,0) using the graphing tool, and find the function

The sum of two numbers is 86, and their difference is 20. find the two numbers

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?