Use the figure below for #15 - 16. PQ = 4x - 5, QR = 6x + 25, PR = 100. I don’t know how my teacher got 5 for x. I just want to see the step-by-step answer because I want to study for the test. Thank you in advance.

Adifferent website gives the cost for the first train as £56.88 and the second train as £20.11 with a £9.50 charge for cycle storage for the whole trip. how much would the journey cost you?

Solve the problem. a student earned grades of c, a, b, and a in four different courses. those courses had these corresponding numbers of credit hours: 4, 5, 1, and 5. the grading system assigns quality points to letter grades as follows: a = 4, b = 3, c = 2, d = 1, and f = 0. compute the grade point average (gpa) and round the result to two decimal places. 3.40 3.50 8.75 2.18

Mr.walker is looking at the fundraiser totals for the last five years , how does the mean of the totals compare to the median?