HELP ASAP Which equation matches the following situation: A shirt, x, is discounted 20%; what is the sale price? y = 1.02x
y = (1 - 0.2)x
y = 1.2x
y = 0.02x

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

Which set of lengths could represent the sides of a triangle? a. 3, 7, 10 b. 4, 5, 10 c. 6, 8, 14 d. 12, 6, 7

Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?