How many 1/6s are in 6/6

Let w=23 . what is the value of w + 45 ?

Which equation represents h for right triangle abc

Atreasure chest sinks at a rate no less than 20 feet er second. the floor of the icean is at most at -4,200 feet. will the tresure chest reach the ocean floor in less than 3 minutes? explain.