Hi i need some help with my math

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

What is the prime factorization of 230

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