Every new customer at the burger barn qualifies to receive a free whistle. the bag of whistles has 9 black ones, 6 red ones, 7 green ones, 10 pink ones, and 4 purple ones.

what is the probability the next customer will receive a red one?

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

Common binomial factor of 6x(3x+7)+5(3x+7)

The party planning committee has to determine the number of tables needed for an upcoming event. if a square table can fit 8 people and a round table can fit 6 people, the equation 150 = 8x + 6y represents the number of each type of table needed for 150 people.