please answer this I really need help if you just take my points ill report I just need help pleasseseessesesee (15 points!)

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

What value is a discontinuity of x squared plus 8 x plus 4, all over x squared minus x minus 6?

Tommy buys a sweater that is on sale for 40% off the original price. the expression p -0.4p can be used to find the sale price of the sweater, where p is the original price of the sweater. if the original price of the sweater is 50, what is the sale price?