Solve the quadratic equation graphically using at least two different approaches. When necessary, give your solutions to the nearest hundredth.

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

Li buys supplies so he can make and sell key chains. he begins to make a profit only after he sells 4 key chains. what point on the graph makes the most sense in this situation?