Brinon rotated trapezoid ABCD 180 degrees on the cardinate plane angles B 20' and angle D is 90% what is the degree measurement of angle B •20
•70
•90
•180

Can somebody me out with this question

He concluded that a heavier object dropped from the same height as a lighter object will land

The tuition costs, c, for a local community college are modeled by c(h) = 250 + 200h, where h represents the number of credit hours taken. the local state university has tuition costs, s, modeled by the function s(h) = 300 + 180h. how many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.