A drawer has 8 socks, 5 are black, 2 are blue and 1 is white. One sock is selected from the drawer and then a second sock is then selected. What is the probability that the pair of socks is: a. P(a black pair):

b. P(white pair):

c. P(a matching pair of socks):

Afurniture manufacturer produces chairs and sofas. each chair requires 10 yards of fabric, and each sofa requires 20 yards of fabric. the manufacturer has 300 yards of fabric available. to fulfill orders, the number of sofas must be at least twice the number of chairs. let x be the number of chairs and y the number of sofas. which inequalities are described in the problem? check all of the boxes that apply

Which ordered pair (c, d) is a solution to the given system of linear equations- c+2d=13 -9c-4d=-15

Combine the information in the problem and the chart using the average balance method to solve the problem.