John 30% of a box of cookies if he ate 15 cookies how many cookies are in the box

In the figure shown below, m < 40 and ab =8. which equation could be used to find x?

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?

In the diagram of circle o, what is the measure of zabc?