Given AB = CD, the measure of arc BC = 78 degrees, and the measure of arc AD = 135 degrees, find the measure of arc AB.

7friends share 4 pizzas equally how much pizza did each friend get

If sec theta = 5/3 and the terminal point determined by theta is in quadrant 4, then

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?