What is the sum of a and b

Ben bowled 124 and 188 in his first two games. what must he bowl in his third game to have an average of at least 160?

Answer asap! show all work! find the number of complex roots, the possible number of real roots and the possible rational roots of the polynomial function. then, solve for all roots. x^3 + 2x^2 + 3x + 6 = 0

Acircle has a radius of 12.6cm what is the exact length of an arc formed by a central angle measuring 120