Marie went out with $ 10.75 to cover the exact cost of a certain number of 25-cent stamps and 10-cent stamps. However, by mistake, she interchanged the number of 25-cent stamps and the 10-cent stamps and came back home with $ 3.30 in change. How many stamps of each kind was she supposed to buy ?

Find all the values of x that make 0.1x + 0.25(102 - x) < 17.10 true.

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?

Cameron indoor stadium at duke university is one of the most revered sites in all of college basketball, as well as in all of sports period. duke’s men’s and women’s basketball programs have attained quite a few wins in the building over the last seventy years. cameron indoor stadium is capable of seating 9,460 people. for each game, the amount of money that the duke blue devils’ athletic program brings in as revenue is a function of the number of people in attendance. if each ticket costs $45.50, find the domain and range of this function.