Nick walks 8 miles in 3 hours, and braylon walks 16 miles in 6 hours. what is the unit rate per hour

Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap

Asquare has a side that measures 11 units. what is the area of a circle with a circumference that equals the perimeter of the square? use 3.14 for π, and round your answer to the nearest hundredth. 1519.76 units2 379.94 units2 616.56 units2 154.14 units2

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?