This is a piecewise function problem (which i've learned are not my greatest talent). i think that the hardest part is part a

The verbal translation for the difference of m and 7 increased by 15

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

Astore has clearance items that have been marked down by 60%. they are having a sale, advertising an additional 55% off clearance items. what percent of the original price do you end up paying?