Hey pls help me in this thanks a lot

Find the midpoint m of z1=(8+5i) and z2=(12+3i)

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x

Many newspapers carry a certain puzzle in which the reader must unscramble letters to form words. how many ways can the letters of emdangl be arranged? identify the correct unscrambling, then determine the probability of getting that result by randomly selecting one arrangement of the given letters.