A90-kg astronaut biologist searches for microbial life on mars where the gravitational acceleration is g = 3.71 m/s2. what is the weight of the astronaut in units of n and lbf?

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

Suppose that in 2008 , 840,800 citizens died of a certain disease assuming the population of teh country is 399 miliion, what is the mortality rate in units of deaths per 100,000 people?

3.4a=57.8 what is the the value of a