Si x= -2, y= 3 y z=4 hallar: x² (y-2) - y (x+2) + 3 y³

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

Due to financial difficulties the owner of 4 skateboard stores is going to close 2 of his stores. based on the money earned at each store, which two stores should remain open?

Mr.walker is looking at the fundraiser totals for the last five years , how does the mean of the totals compare to the median?