Yis directly proportional to x.
when y=30, x=6
a) what is the equation connecting y and x?
b) what is the value of y when x=12

What value of x is in the solution set of –5x – 15 > 10 + 20x?

Pete is making decorations for a dinner party. the instructions tell him to use 9 flowers for a medium-sized decoration. complete each statement to adjust the flowers for different-sized decorations based on these instructions.

Solve the system of equations y= 3/2 - 1, -x+ y =-3