Ten thousand times the sum of a number and seven hundred

The sum of two numbers is 12 and their difference is 18 what are the two numbers

An ulcer medication has 300 milligrams in 2 tablets. how many milligrams are in 3 tablets?

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?