In a restaurant a service charge of 10% is added to the prize of a meal. What is the service charge on a meal costing £28.50?

According to statistics a person will devote 32 years to sleeping and watching tv. the number of years sleeping will exceed the number of years watching tv by 18. over a lifetime, how many years will the person spend on each of these activities

The longer leg of a 30-60-90 trangle is 18

Kristen is wrapping presents for the holidays. she has a box that measures 4 ft. x 2 ft. x 2 ft. how many square feet of wrapping paper does she need to cover the box without overlapping?