I want to find the vertex

Asalesperson earns $320 per week plus 8% of her weekly sales. the expression representing her earnings is 320 + 0.08x. which of the following describes the sales necessary for the salesperson to earn at least $1000 in the one week?

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 5x^2 + 10x

The median for the given set of six ordered data values is 29.5 9 12 25 __ 41 48 what is the missing value?