PLEASE HELP I DON'T KNOW

65 people

Step-by-step explanation:

Imagine the situation backwards

Let's say the people who were originally on the train are all wearing red. You end with 63 people. Of these 63 people, 17 of them JUST got on and are wearing blue. So 63 people - 17 blue people is 46 red people (remember, we are trying to find all the RED people). Before all of this happened, 19 people had gotten OFF the train, and these people were part of the original group so they were also red. So now add the 46 red people on the train to the 19 red people that got off and you get 65

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet

hi im bob : l

step-by-step explanation: