Should inequality sign flip when solving the problem

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

Jonathan can type 20 documents in 40 minutes ,and susan can type it in 30 minutes and jack can type it in 24 minutes working together ,how much time will it is take them type the same document

Rewrite the equation x = 65 - 60p by factoring the side that contains the variable p.