I'm trying to explain solving equations by factoring to my son

The center of the circumscribed circle lies on line segment and the longest side of the triangle is equal to the of the circle.

Need asap. solve for the following inequality

As a salesperson you get $50/day and $3.60/each sales you make. if you want to make $60 in one day, how many sales would you need need to make ? a 3b 4c 5d 6 show work.