Which part of the passage hints at helen’s efforts of ensuring visibility on social media sites?

what passage are you referring to

the answer would be, she updates her online profiles regularly and participates in work-related online discussions.

onto a large boat, and mark the water level that the boat sinks to. then, take the elephant out and put a bunch of marked weights onto the boat until it reaches the same water level. add up the masses of the weights to get the weight of the elephant.