Draw the graph of

what are the points?

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

What is the value of x when x + 7 = 21?

Jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. after tax the total is 45.99. what percentage of the subtotal is the total?