Adiscount store buys a shipment of swing sets at a cost of $210 each. the swing sets will be sold for $609 apiece. what percentage is the mark-up?

Which of these sequences is a geometric sequence a 1,2,4, 7, 11, 16, 22. b. 2.4.8.14.22.38 c.3.6.9. 15.18,21 d. 3,9,27,81,243,729,

What is the ratio for the surface areas of the cones shown below, given that they are similar and that the ratio of their radii and altitudes is 2: 1? submit

Hello, i need compare km^2 and km. what's difference in this?