help please with step by step how to answer im so stuck on these circumcenters find the circumcenter of the triangle with vertices A (0,7) B (-3,1) C (3,1)

At a sand and gravel plant, sand is falling off a conveyor and onto a conical pile at a rate of 16 cubic feet per minute. the diameter of the base of the cone is approximately three times the altitude. at what rate is the height of the pile changing when the pile is 12 feet high? (hint: the formula for the volume of a cone is v = 1 3 πr2h.)

Given abcd ac=38 and ae=3x+4 find the value of x

You eat $0.85 for every cup of hot chocolate you sell. how many cups do you need to sell to earn $55.25