From an external point p two tangents pa and pb are drawn to a circle with center o .prove op is perpendicular to ab a

Cam bought some used books for $4.95. he paid $0.50 each for some books and $0.35 each for the others. he bought fewer than 8 books at each price. how many books did cam buy?

Show all work to identify the discontinuity and zero of the function f of x equals 6 x over quantity x squared minus 36

At store a, erasers are sold individually. the cost y of x erasers is represented by the equation y=0.75x. the costs of erasers at store b are shown in the graph.