Assignment - Finding Slope

What is the sum of these mixed numbers 2 1/8 + 4 3/8

Which statement about the relative areas of δabc and δxyz is true? the area of δabc > the area of δxyz the area of δabc < the area of δxyz the area of δabc = the area of δxyz more information is needed to compare.

Find the condition that the zeros of the polynomial f(x) = x^3+3px^2+3px+r may be in a.p.