What is the image of (-5,3)(−5,3) after a reflection over the x-axis?

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

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?