I will mark branliest for whoever helps me :)

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.

Multiply the polynomials (x+3)(x^2-6x+5)

Given that the images represent 4 steps in the construction of a line segment congruent to a given line segment, which is step 3 in the construction?