Number 1. the science club went on a two-day field trip. the first aid the members paid $60 for transportation plus $15 per ticket to the planetarium. the second day they paid $95 for transportation plus $12 per ticket to the geology museum. right now expression to represent the total cost for two days for that n members of the club.

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.