This is a two step inequality problem. what is the answer

Bugs bunny was 33 meters below ground, digging his way toward pismo beach, when he realized he wanted to be above ground. he turned and dug through the dirt diagonally for 80 meters until he was above ground

Convert the mixed numbers into improper fractions. convert the improper fraction to mixed numbers.

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.