What is the cost of 5 pounds of peppers if 4 pounds cost $2.60

The probability that a student graduating from suburban state university has student loans to pay off after graduation is .60. if two students are randomly selected from this university, what is the probability that neither of them has student loans to pay off after graduation?

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

Ataxi company charges $3 for pick-up plus $0.65 for each mile. select the expressions that represent the cost in dollars for a taxi pick-up and m miles. mark all that apply.