Which equation below shows a constant of proportionality of 4? A- y= 4x
B- y= 1/4x
C- x= 4y
D- y= 0.4x

Savannah is painting a striped background for a mural on a wall that is 1515 yards long. she wants a total of 9696 stripes that are all the same width. which calculation should savannah use to decide how wide to make each stripe?

What is the point slope form of a line with slope -5 that contains point (2,-1)

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?