What is the solution to the system of equations below?

- 4 x+6 y = - and y = -2 x +21
(9, 3)
(3, 9)
(–9, –9)
(–9, 9)

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

Asphere has a diameter of 10 in. what is the volume of the sphere?

Mike wants to make meatloaf. his recipe uses a total of 8 pounds of meat. if he uses a 3 to 1 ratio of beef to pork, how much pork will he use? enter your answer as a mixed number in simplest terms.