One of Rose's gardens will have a tree in the center as shown. The radius of the large outer circle will be 4 feet while the radius of the inner circle for the tree will be 1 foot. Find the area of the garden without the tree. Show your work

Arace is 10 kilometers long.markers will be placed at the beginning and end of the race course and at each 500 meter mark.how many markers are needed to mark the course for the race?

The least common multiple is the multiple, other than 0, common to sets of multiples.

Atown recently dismissed 5 employees in order to meet their new budget reductions. the town had 5 employees over 50 years of age and 19 under 50. if the dismissed employees were selected at random, what is the probability that exactly 2 employees were over 50? express your answer as a fraction or a decimal number rounded to four decimal places.