***plz ! will give *** the face of a clock is a circle. the ratio of the area, in square centimeters, of the face of the clock to the circumference, in centimeters, of the face of a clock, , is . find the circumference of the face of the clock. use 3.14 for . (round to the nearest hundredth as needed)

The table below shows the approximate masses of a dust particle and a grain of pollen. dust particle 0.000000778 g grain of pollen 0.00000000155 g the mass of a dust particle can be estimated and written in the form a × 10^b, where a = 8 and b = the mass of a grain of pollen can be estimated and written in the form a × 10^b, where a = 2 and b = based on the estimates, the mass of a dust particle is approximately blank times larger than the mass of a grain of pollen.