Graph these equations:
x + 3y = 6
x + 3y = 9

Identify the parent function that can be used to graph the function f(x)= (1/4x)^3

Three coins are flipped. what is the probability that there will be at least two tails?

The fence around a quadrilateral-shaped pasture is 3a^2+15a+9 long. three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. what is the length of the fourth side of the fence?