James has a job with a current salary of $42,000. he wants to earn a college degree that will take him 2 years to complete and it will cost $28,000 per year. he will go to school full time and will not be able to work. upon graduation, james' new salary will be $56,000 per year. how many years will it take james to recover his investment?

Arestaurant gives out a scratch-off card to every customer. the probability that a customer will win a prize from a scratch-off card is 25%. design and conduct a simulation using random numbers to find the experimental probability that a customer will need more than 3 cards in order to win a prize. justify the model for your simulation, and conduct at least 10 trials.

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2

The figure below shows rectangle abcd and the triangle eca on a coordinate plane.which of the following expressions represents the perimeter of triangle of triangle eca in units