Which of the following linear functions are invertible and has symmetry about the origin? Select all that apply. a(x) = 4x-5
b(x)= 2(1/2x + 15) - 10
c(x) = 3/4(4/3x+8)+x-6
d(x) = 9x
f(x) =- 15

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