determine which of these are perpendicular parallel or none

Find the area of the triangle shown 3 by 6

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

How many grams the dog will eat in 3 days?