-6+-3-(-18)? what is the answer to this problem?

The triangles are similar. what is the value of x? show your work.

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

For the right triangle shown, the lengths of two sides are given. find the third side. leave your answer in simplified, radical form.