A robot can complete 8 tasks in 3/5 hour. Each task takes the same amount of time.
How many tasks can the robot complete in one hour?

Since 3/5 of an hour is 36 minutes and the robot can complete 8 tasks in 36 minutes. The remaining minutes are 24 and in 24 minutes the robot can do about 5 tasks so add 5 and 8 to get about 13 tasks in an hour.

Explanation: Just divide 36 by 24 to get 1.5 and divide 8 by 1.5 to get about 5. Then add 8 + 5 to get 13 the final result. So it’s 13 tasks. Sorry if I got it wrong.

5x^2 + 20x

Step-by-step explanation:

5x(x+4)

5x*x + 5x*4

5x^2 + 20x