Joan bought a soft drink for $3 and 9 candy bars. She spent a total of $21. How much did each candy bar costs?

What is the common difference in the following arithmetic sequence? 7,3,-1,-5

You are remodeling your kitchen. you’ve contacted two tiling companies who gladly told you how long it took their workers to tile of a similar size jim completed half the floor in 8 hours. pete completed half of the other floor in 7 hours. if pete can lay 20 more tiles per hour than jim, at what rate can jim lay tiles

What percent of the circle below is shaded?