A box contains 2 blue markers, 5 green markers, and 3 yellow markers. What is the probability of drawing a blue marker, replacing it, then drawing a yellow marker? Write as a fraction in simplest form

Does anyone know how to do geometryme with this problem

Iwill give ! if m∠a=59 and m∠3=81°, what is m∠b? m∠b= _[blank]_°

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