A box contains 90 discs numbered from 2 to 90. If one disc is drawn at a random, find the probability that it bears a two digit number

To show that polygon abcde is congruent to polygon fghij, a must be used to make the two polygons coincide. a sequence of two transformations that can be used to show that polygon abcde is congruent to polygon fghij is .

Someone . me. compound probability

The ratio of men to women working for a company is 4 to 5 . if there are 90 women working for the company, what is the total number of employees?