A boy is 20 years old at present. How old was he 3 years ago?​

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

Which expression is equivalent to the expression shown?

Determine domain and range, largest open interval, and intervals which function is continuous.