Which sequence has a common difference of 3? 3, 12, 21, 30
8, 12, 16, 20
5, 10, 15, 20
3, 6, 9, 12

Which statement accurately explains whether a reflection over the x-axis and a 180° rotation would map figure acb onto itself?

Vinay constructed this spinner based on the population of teachers at his school according to vinays model what is the probability that he will have a male history teacher two years in a row

Askateboard ramp is in the shape of a right triangle what is the height of the ramp