Some one plz i’ll mark u brainliest plz

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?

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.

State one method by which you can recognize a perfect square trinomial.