A boat salesperson earned a commission of $4,500 on the sale of a $25,000 boat. Which statement below identifies a commission with the same rate?

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

Rewrite 9 log, x2 in a form that does not use exponents. 9log, x = log, x

Find the directions in which the function increases and decreases most rapidly at upper p 0p0. then find the derivatives of the function in these directions. f(x, y)equals=x squared plus xy plus y squaredx2+xy+y2, upper p 0p0left parenthesis 1 comma negative 4 right parenthesis