Can someone simplify 2y-3x^2+6x^2-3y ?

Alex drew a circle with right triangle prq inscribed in it, as shown below: the figure shows a circle with points p, q, and r on it forming an inscribed triangle. side pq is a chord through the center and angle r is a right angle. arc qr measures 80 degrees.

What is the value of m in the equation 1/2 m - 3/4n=16 when n=8

We have 339 ounces of jam to be divided up equally for 12 people how muny ounces will each person get