One button is chosen at random from a bag of buttons. The probability that it is yellow is 0.2.
What is the probability that the button chosen is not yellow?

While picking thirty apples, mia noticed that six apples had worm holes and had to be thrown away. what is the ratio of good apples picked to bad apples picked?

20 ! need which shows a difference of squares? 10y^2-4x^2 16y^2-x^2 8x^2-40x+25 64x^2-48x+9

Mr switzer needs to buy new 1-foot tiles to cover his bathroom floor. the floor is 12 feet long and 8 feet wide. each square foot of tile will cost $1.79. in dollars what will be the total cost of the tiles he needs to buy.