Of the last 12 trains to arrive at Stafford Station, 8 were on time. What is the experimental probability that the next train to arrive will be on time? Write your answer as a fraction or whole number.

Acollege is planning to construct a rectangular parking lot on land bordered on one side by a highway. the plan is to use 680 feet of fencing to fence off the other three sides. what dimensions should the lot have if the enclosed area is to be a maximum?

What value of x is in the solution set of –5x – 15 > 10 + 20x?

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.