Answer:
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X+6=y thats the answer i got
The rule of scientifinc notation is that we can use number between 0 and 10, so here we can use 2.8. Lets do this
280 000 000 = 2.8 * 100 * 1 000 000
Now we can just multiply 2.8 by 10 to the power of number of 0 reapeted
So

- its the result
For this question, you need to find the average number of minutes each girl trained for,
let me know if you would like help solving this :)