g(x)=3x+1 h(x)=5-x j(x)=x^2+7 k(x)=x+2. (Goh)(0) (kog)(4) (hoh)(11) (jok)(2) (kog)(-2) (jok)(3) (hoj)(-5) (joj)(-2)

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.