Please help!! I will give 25 points. Please and thank you

The longer leg of a 30° 60° 90° triangle is 16 times square root of three how long is a shorter leg

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?

An alternative to car buying is to make monthly payments for a period of time, and then return the vehicle to the dealer, or purchase it. this is called