For every 1 girl in mr hegarty's class there are 4 boys. what is the ratio of boys to girls in the class? give your answer in its simplest form.

What are the coordinates of the midpoint of ab? ,1/2) /2,-1) ,-3/2) /2,-2)

Which graph represents the parent function of y=(x+2)(x-2)

Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?