Can Anyone Help with this question? Gladly appreciate it!

Savannah is painting a striped background for a mural on a wall that is 1515 yards long. she wants a total of 9696 stripes that are all the same width. which calculation should savannah use to decide how wide to make each stripe?

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?

Plz hurry evaluate the expression a+b where a=8 and b=19