Of the two bottles of sunblock shown, which is the better buy? Explain. 4 ounce bottle: $8.49
5 ounce bottle: $10.29

Explain step-by-step how to simplify -5(2x – 3y + 6z – 10).

What is the lcm of 16 and 40 ? 24 and 40 ?

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