Amar received a 20% raise at work. He earned $20 per hour before the raise. What is the amount of his raise?

What are potential hypotheses (explanations) regarding why there are ecological equivalents between many metatherians and eutherians? discuss your hypothesis in terms of the processes that could lead to the current ecologies and distributions of metatherians and eutherians.

What is the perimeter of a rectangular building that is 80 feet wide and 140 feet deep?

Find the value of x for which line a is parallel to line b