The chart shows the number of students in my class color T-shirts they wore what percentage of the total

Find the lateral surface area plzzz

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

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