There are 8 girls and 7 boys in mrs. campbell’s probability and statistics class. mrs. campbell is picking a group of 6 students. how many different combinations of students are possible?

needs to show all work.

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

State if the two triangles are congruent. if they are, state how you know?

Twelve less than a number is at most 20