Find the distance between -472 and 196 on the number line

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

Fast! find the length of cu. the triangles are similar. show your work.

Charlie is at an amusement park that has 18 different rides. each ride costs $1.75. the function c(r) = 1.75r represents the total amount of money that charlie will spend if he goes on r rides, but he never goes on the same one more than once. what domain and range are reasonable for the function?