What is the circumference of the circle r =9in

Can someone answer it, and plot it, for 20 points and brainliest answer? p. s. they're the same ! : )

Jane’s favorite fruit punch consists of pear, pineapple, and plum juices in the ratio 5: 2: 3. how many cups of pear juice should she use to make 20 cups of punch?

The equation of a parabola is given. y=18x2+4x+20 what are the coordinates of the focus of the parabola?