Kieran's dance class starts at 4: 30and ends at 6: 15 how long was he class

The gades foundation and hbm corporation are eager to donate generously to their favorite charities. the gades foundation donated $250 in the first month, and each month afterward their cumulative donation total increases by 100$ the hbm corporation donated $64, in the first month, and each month afterward their cumulative donation total increases by 75%. in which month will the hbm corporation's cumulative donation total first exceed the gades foundations' cumulative donation total?

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

Write an equation of the line that passes through 9,2 and is parallel to the line y=5/3x+9