The perimeter of an equilateral triangle is 6n - 15 . write an expression to represent the length of each side.

Offering 30 if a plus b plus c equals 68 and ab plus bc plus ca equals 1121, where a, b, and c are all prime numbers, find the value of abc. the answer is 1978 but i need an explanation on how to get that.

Solve each equation using the quadratic formula. find the exact solutions. 6n^2 + 4n - 11

For each given situation, determine if the method of randomization is either appropriate or not appropriate