Fine the first four terms of the sequence an=n2+4

What is the perimeter of a rectangular building that is 80 feet wide and 140 feet deep?

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

What happens to the area as the sliders are adjusted? what do you think the formula for the area of a triangle is divided by 2?