PLZ SOMEONE HELP ME I BEG

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

Kapil needed to buy a long wooden beam. he went to two sawmills that each charge an initial fee plus an additional fee for each meter of wood. the following equation gives the price (in dollars) of a wooden beam from the first sawmill as a function of its length (in meters). p = 5+20xp=5+20x

The candy store is having a 30% off sale. emma is going to buy $7.50 worth of candy.how much will she pay after the discount