A bag contains n counters.

One counter is blue and the rest are red.

Two counters are taken at random from the bag.

a) Express, in terms of n, the probability that a counter of each colour is taken.

Give your answer as a fraction in its simplest form.

b) The probability that a counter of each colour is taken is 0.125 How many red counters are in the bag?

Which number produces a rationale number when multiplied by 1/5

The square root of 9x plus 7 plus the square rot of 2x equall to 7

Tom is the deli manager at a grocery store. he needs to schedule employee to staff the deli department for no more that 260 person-hours per week. tom has one part-time employee who works 20 person-hours per week. each full-time employee works 40 person-hours per week. write and inequality to determine n, the number of full-time employees tom may schedule, so that his employees work on more than 260 person-hours per week. graph the solution set to this inequality.