Answer: $454.55
Step-by-step explanation:
Tito's weekly salary is always $ 500 per week.
But your weekly commission income depends on the sales you make. Your commissions are 55%.
If we call x the dollar amount of all sales made by Tito in a week, then his income z(x) is given by the following equation:

We wish that
.
Then we equate the equation to 750 and solve for the variable x.



Total sales made by Tito must be $454.55
Answer:
Greatest to least: 887.304, 887.043, 878.403
Step-by-step explanation:
<span>When order does not matter you use what is called n choose k formula
n!/(k!(n-k)!) where n is the number of things to choose from and k is the number of choices made, in this case:
20!/(4!(20-4)!)=4845</span>