Hello, i need to solve this two step equations with decimals
8.5p + 6 = 40

In the diagram, the measure of angle 9 is 85° which angle must also measure 85°?

Solve 3x-18=2y and 5x-6y=6 by elimination show work

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?