If f(x)=x and g(x)=2, what is f(g(x))

When you answer this can you explain

Labc is reflected across x = 1 and y = -3. what are the coordinates of the reflection image of a after both reflections?

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?