I really hate this get more math app but I need help :)

Which statement about the graph of y = 8(0.25)^2

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.

Simplify the expression below -3(10x+4y)+6(6x-2y)