With the help of triple bar diagram represent the statistical data showing the percentage change in the green house gases in past five years.

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?

Kendra had twice as much money as kareem. kendra later spent $8 and kareem earned $6. by then,the two had the same amount of money. how much money did each have originally?

Aramp rises 4 feet over a distance of 10 feet. what is the length of the ramp?