Is the spinner described below a fair spinner? If yes, explain why. If not describe a change that could make the spinner fair There are 10 parts on the spinner 4 orange, 5 blue and 1 grey.

Which expression is equivalent to 2x^2+2x-4/2x^2-4x+2

Over the last 8 nights, elyse earned the following in tips: {105, 120, 84, 95, 100, 132, 140}. if she earns $140 a night for the next four nights, which measure of center would increase more, the mean or median?

Some boys and girls were asked if they had a pet. one third of the group were boys. there were 20 boys. 20% of the girls had a pet. boys with a pet : girls with a pet = 1 : 5 i need to know how many girls there are.