A certain coin is a circle with a diameter of 18mm what is the exact area of either face of a coin in terms of Pi

81 pi

Step-by-step explanation:

formula for area of a circle-pi times radius squared

18/2=9

9 squared 81

answer-81 pi

my answer is$ 12

step-by-step explanation:

because 15 -2=12

total amount to be paid = $19.5

step-by-step explanation:

given ,

original price = $25.99

discount = 25%

discount amount = 25% of original price

discount amount = 25/100   * 25.99

discount amount = $6.49

hence , the total amount to be paid = original price - discount amount

                                                            = $25.99 - $6.49

                                                            =$19.5

total amount to be paid = $19.5