Choose the correct proportions.

4, 1, 2, 2

a) 1:2 = 2:4
b) 1:4 = 2:2

The system of equations graphed below has how many solutions? y = 2x + 2

Two angles are complementary. the larger angle is 36 more than the smaller angle. what is the measure of the larger angle?

Every weekday, mr. jones bikes from his home to his job. sometimes he rides along two roads, the long route that is shown by the solid lines. other times, he takes the shortcut shown by the dashed line. how many fewer kilometers does mr. jones bike when he takes the shortcut instead of the long route?