If ∠A is a complementary angle of ∠B and ∠C is a complementary angle of ∠B, then which of the following statements is true? Question 9 options:

A)

∠A + ∠C ≅ ∠B

B)

∠A ≅ ∠B

C)

∠A ≅ ∠C

D)

∠B ≅ ∠C

7x+8y=-18, 4x-9y=-3 solve the system of equations

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

Ithink i know it but i want to be sure so can you me out ?