Solve for c. 3c+2=-10 and thank you

Can you draw an isosceles triangle with only one 80 degree angle?

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?

Which expression is equivalent to 5r6141 2r+st6