Q P R is an image creatded by dilation centered at the orgin with a scale factor k= 1/4. the vertices of Q P R (,-2 1) and R (-1 3) what are the vertices of the preimage QPR​

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.