What graph is a proportional relationship? Write a CAPITAL LETTER ONLY

Pls , the question is in the picture!

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

Julie was able to walk 16 km through the zoo in 6 hours. how long will it take her to walk 24 km through the zoo?