You collect 96 customer comment cards, 21 online surveys, and 43 surveys from people passing in front of your restaurant. What is your total sample size and what percent of your sample answered on customer comment cards?

Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.

The total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?