to make an international telephone call you need the code for the country you are calling. the codes for country A , country B, and C are three consecutive integers whose sum is 84.Find the code for each county​

Arectangle has a perimeter of 20 cm. the length, x cm, of one side of this rectangle is uniformly distributed between 1 cm and 7 cm. find the probability that the length of the longer side of the rectangle is more than 6 cm long.