A right circular cylinder with a radius of 2.3cm and a height of 1.4cm has a total surface area of ​

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

What is the percentile for data value 6 in the following data set? 4 13 8 6 4 4 13 6 4 13 2 13 15 5 9 4 12 8 6 13 40 25 35 62

Money off coupons have been circulated to 300 households. only 2/5 of these were redeemed (used) in the local supermarket to get a free shampoo. what fraction of coupons were unused? (ps: write how you got the answer)