The Candy Factory sells candy by the pound, charging $1.60 per pound for quantities up to and including 30 pounds. Above 30 pounds, the Candy Factory charges $1.25 per pound for the entire quantity, plus a quantity surcharge k. If x represents the number of pounds, the price function is as follows. 1.60x for x $ 30 p(x) = 1.25x + k for x > 30 Find k such that the price function p is continuous at x = 30. The price function p is continuous at x = 30 when k = ]. (Type an integer or a decimal.)