What is this unit rate for 768.57 m 41.1 h

What is the result of adding the system of equations? 2x+y=4 3x-y=6

Acircle has a circumference of 7.850 units. what is its radius?

If the endpoints of the diameter of a circle are (8, 6) and (2,0), what is the standard form equation of the circle? a) (x + 5)2 + (y + 3)2 = 18 (x + 5)2 + (y + 3)2 = 3.72 (x - 5)2 + (y - 3)2 = 18 d) (x - 5)2 + (y - 3)2 = 32