What equation represents the line that passes through the point (8, -7) and is perpendicular to the graph of y= -9/2x + 2?

This is fractions casey shared a pizza with some friends. they each ate 1 third of the pizza. how many people shared the pizza

Use set builder notation to represent the following set: { -3, -2, -1, 0}

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. when the check comes, it says they also need to pay $3.99 in sales tax. what percentage of the subtotal is the sales tax