Solve for X. Please help ASAP! I have no idea how to do this and it’s due realllyy soon!

Ineed if you could explain and give me the answer you! this needs done

The anwser cause i do not understand just plez

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.