What's the value of x?

Barney & noblet customers can choose to purchase a membership for $25 per year members receive 10% off all store purchases 1. how much would a member pay per year if he bought $50 worth of items each year? 2. write a slope-intercept equation that expresses how much a member pays per year using x to represent his purchases per year 3. how much would a member have to spend per year to pay off his membership fee?

In an improper fraction, is the numerator equal to, less than, or greater than the denominator

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?