A B C and D are points on the circumference of a circle, centre O. ED is a tangent to the cicle

Angle ODB = 25degrees

Work out angle BAD. You must give a reason for each stage of your working.

Saline iv fluid bags cost $64.20 for 24, 1000 ml bags from one supplier. a new supplier sells 500 ml bags for $2 each. the hospital uses about 10,000, 1000 ml bags each month. nurses report that about half of the bags are more than half full when they are discarded. if you are going to use only one supplier, which size bag provides the best deal, and how much will you save each month? compare the cost of the new supplier to the current one.

Which of the functions below could have created this graph?

Which statement accurately describes how to perform a 90° clockwise rotation of point a (1,4) around the origin?