Which of the following is a factor of the expression 4x^2-2x-42? Group of answer choices

2x-6

2x-7

x-3

4x-7

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?

Sue's average score for three bowling games was 162. in the second game, sue scored 10 less than in the first game. in the third game, she scored 13 less than in the second game. what was her score in the first game?

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