Equations and Inequalities

Question

Kimmy earns a 20% commission on all sales plus a base salary of $30,000. her total income last year was $80,000. Which equation can be used to calculate Kimmy's total sales.

Answer 1

I = 30,000 + 0.20S  where I is income, S is total sales.  I = 80,000.

 

If you pose a question as Which equation can be used to calculate Kimmy's total sales,

 

then that suggests that we're to be given several options from which to choose.