ducks and pigs are in a barn. There a total of 20 animals with 56 legs all together. How many of each animal are in the barn?

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

If you have the following equation, 2/3x+5/6-x=2-3/4x what would you multiply each term by to get rid of all the fractions

Heather is writing a quadratic function that represents a parabola that touches but does not cross the x-axis at x = -6. which function could heather be writing? fx) = x2 + 36x + 12 = x2 - 36x - 12 f(x) = -x + 12x + 36 f(x) = -x? - 12x - 36