If the price of gold went from $460 an ounce to $483 an ounce in one week, what was the percent change in the price of gold?

Gretchen is setting up for a banquet. she has 300 chairs and needs to distribute them evenly among t tables. how many chairs should she put at each table? write your answer as an expression.

The reflexive property of congruence lets you say that ∠pqr ≅

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