If humans originated in africa and migrated to other parts of the world, some time would be required for this to occur. at the modest rate of one kilometer per year, how many centuries would it take for humans originating in africa to travel to china, some 10,000 kilometers away?

What is the greater volume 72 quarts or 23 gallons

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?

Since opening night, attendance at play a has increased steadily, while attendance at play b first rose and then fell. equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. on what day(s) was the attendance the same at both plays? what was the attendance? play a: y = 8x + 191 play b: y = -x^2 + 26x + 126 a. the attendance was never the same at both plays. b. the attendance was the same on day 5. the attendance was 231 at both plays on that day. c. the attendance was the same on day 13. the attendance was 295 at both plays on that day. d. the attendance was the same on days 5 and 13. the attendance at both plays on those days was 231 and 295 respectively.