PLS HELP I WILL GIVE BRAINLIEST (I WILL REPORT IF YOU USE THIS FOR FREE POINTS!!!) Tina visited 16 cities on her vacation. She bought 9 souvenirs in each city to send to her friends. Tina paid $3 in postage for each souvenir she sent. How much did Tina spend in postage?
a) $144
b) $27
c) $38
d) $432

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.