The ratio of the angles in a triangle is 7/2 / 1 . What is the measure of the largest angle?

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.

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

Use the elimination method to solve the systems of equations.choose the correct ordered pair. 7x+4y=39