When factoring polynomials, you should always ­­­­do this step first: a.
Factor by un-FOILing.

b.
Factor a Difference of Squares.

c.
Check for and factor out a GCF.

d.
Factor by Grouping.

Can someone me with the property questions for 12 13 and 14 plz

Find the percent error of the measurement 4 cm

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.