What +308 -- 126=450​

(40 points) i need some . an answer definition is appreciated as well.

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

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.