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What is the radius of a circle with an area of 78.5 cubic inches? use 3.14 for pie

Eric drove 275 miles in 5 hours. at the same rate how long would it take him to drive 495 miles?

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.