Translate A number plus five is eighteen

Using the quadratic formula find the zeros of the given polynomial -5x^2+3x-11

Johnny rode his bike to a friends house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was unable to play. what was his displacement for the total bike ride trip? what could you use as a reference point ? show the steps to solve this problem.

5cakes cost 3.50 how much do 7 cakes cost