The art teacher started class with a block of clay that weighed 79 1/10 pounds. The students used 65 9/10
pounds of the clay during 100 class.
How much clay was not used by the students?

A 13 pounds
B 14 pounds
C 14 100 pounds
D 1419 pounds

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?

Answer this question! 30 points and brainliest!

Solve 2x2 + 8 = 0 by graphing the related function. there are two solutions: . there are no real number solutions. there are two solutions: 2 and -2