Sandy went to the beach. She found 89 seashells and 47 starfishes on the beach. After giving her friend Dan some seashells, she has 13 seashells left. How many seashells did she give Dan?

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