Please help meee

i’m a a hurry

Liz had 140 pens and inna had 100 pens. after inna gave liz some pens, liz had 3 times as many pens as inna. how many pens did inna give liz?

Q= {1.7, 1.1, 1.4, 2.1, 2.3, s}. what is the absolute difference between the greatest and least possible values of the median of set q? express your answer as a decimal to the nearest hundredth.

Sheila and her study partner flipped a coin 120 times. they flipped 70 heads and 50 tails. what is the experimental probability that the next flip will be heads up?