Richard bought a jacket priced at $40. The total cost of the jacket, including sales tax $43. What was the sales tax rate to the nearest tenth of a percent?

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?

Kyle and elijah are planning a road trip to california. their car travels 3/4 of a mile per min. if they did not stop driving, how many miles could kyle and elijah drove in a whole day? ? 1 day = 24 hours. plzzz write a proportion i will give you 100 points

Use the irregular polygon below. show all work. a. find the perimeter. b. find the area. the angles of the irregular polygon is 2, 8, 8, and 4.