80 POINTS A battery is charged.
The percentage of the battery's capacity that is charged as a function of time (in minutes) is graphed. Photo attached below. Only answer if you know.

12 percent

Step-by-step explanation:

you can see on the graph that the charged percentage of capacity changes from 40 to 50 in 5 minutes. then the increase in 6 minutes will slightly more than 10 percent.

The linear rate is (10%)/(5 min) = 2%/min, so in 6 minutes it will be

    (2%/min)x(6 min) = 12%

This calculation is consistent with our observation from the graph.

Every 6 minutes, 12 percent is added to the capacity.

x + 4/7

step-by-step explanation:

use cymath