△xyz was reflected over a vertical line, then dilated by a scale factor of 1/2, resulting in △x'y'z'. which must be true of the two triangles? check all that apply.

△xyz ~ △x'y'z'
xzy ≅ y'z'x'
yx ≅ y'x'
xz = 2x'z'
myxz = 2my'x'z'

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