10k to the third power + 8k to the second power + 10 divided by (k+1)

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?

Drag the tiles to the correct boxes to complete the pairs. not all tiles will be used. match each division expression with the correct quotient.

What is the area of a triangle with vertices at (-3 3) (-3,2) and (1,2)?