Define f(10) in a way that extends f(s)=s^3-1000/s^2-100

Janets dinner costs 7.50. if she wants to leave a 10% tip how mich extra should she leave

Which expressions are equivalent to -6 + 3m

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?