Given the following perfect square trinomial, fill in the missing term. (Do not type the variable in the blank.)
x2 − 16x +

Teams of 4 are competing in a 1/4 mile relay race. each runner must run the same exact distance. what is the distance each teammate runs?

According to the data set, where should the upper quartile line of the box plot be placed?

Mat bought a phone for $100. he has to pay $30 per mouth. if he has paid $640 in total, how many mouth has he had the phone?