Suppose that 7 green balls and 9 purple balls are placed in an urn. two balls are then drawn in succession. what is the probability that the second ball drawn is a purple ball if the first ball is replaced before the second is drawn?

Find the area of a parallelogram with the given vertices. p(-2, -5), q(9, -5), r(1, 5), s(12, 5)

Charlie tosses five coins.what is the probability that all five coins will land tails up.

On a bicycle trail, the city is painting arrows like the one shown below: upper pointing arrow with height of 11 and length of 9. rectangular base of arrow has length of 7 and height of 8. all units are in centimeters. calculate the area of the arrow by decomposing it into rectangles and triangles. 66.5 square centimeters 69.5 square centimeters 83 square centimeters 99 square centimeters