Question 814907
Mr gray sells only 1 mower at $375. If he receives a 20% commission on the mower he sells what is the lowest number of mowers he must sell each week to receive an income higher than $500 a week.

one mower 375

commission 20 %
let the number of mowers sold be x to get more than $500

sale from x mowers = 575 x

interest for x mowers = 20%*575 x

this should be  greater than 500

{{{20/100 *575 *x>500 }}}

{{{x > (500*100)/(575*20)}}}

4.3 

minimum 5 mowers must be sold