Aaron has x nickels and y pennies. He has no less than 20 coins worth no more than $0.40 combined. Solve this system of inequalities graphically and determine one possible solution.

Chandler was a caretaker at the state zoo. he noticed that the number of animals adopted by the zoo increased at a constant rate every year since 2010. which of the following graphs shows the slowest rate at which the animals in the zoo were adopted?

What is 32+4 x (16 x 1/2) -2 show your work}

What kind of bond pays interest which is exempt from tax?