Which function is a quadratic function? f(x) = 2x2 g(x) = 5x3 k(x) = –x b(x) = –9x4

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?

Due to financial difficulties the owner of 4 skateboard stores is going to close 2 of his stores. based on the money earned at each store, which two stores should remain open?

Find the distance between c and d on the number line c=3 and d=11