Light bulbs manufactured at a certain factory have a 3% probability of being defective. what is the probability that 5 out of a shipment of 30 will be defective?

Identify whether the figure has plane symmetry, symmetry about an axis, or neither.

Joseph haydn pet store offers wide variety of leashes for dogs. the store purchases one popular type of leash from its manufacturer for $4.38 each. joseph haydn pets marks up leashes at a rate of 238% of cost. what is the retail price of the popular leash?

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