PLEASE HELP

Find the Surface Area

2.5 cm2
73.5 cm2
37.5 cm2
3.75 cm2

For which rational expression is -2 an excluded value of x?

Imagine a new pasture with grass growing on it. every day after the seeds have germinated, the number of blades of grass in the pasture triples. after 18 days, the entire pasture is completely covered in grass. how many days did it take for the pasture to be one-third covered in grass?

What is not true about kl and mn? what is mn? (show your work)