Round 6.09933418366 to 4 decimal places.

6.0993

Step-by-step explanation:

If you want to round to 4 decimal places, look onto the 5th decimal place. If 5th decimal place is 5 ,6,7,8 or 9 then add  to the 4th decimal place. If the 5th decimal place hold 1,2,3 or 4 then write the 4th decimal place as it is.

6.09933418366

Here, 5th decimal place is 3.

So, 6.0993 is the answer

n=9

step-by-step explanation:

7 times a number = 7n

decreased by 13 = 7n-13

same as is =

5 times the number = 5n

increased by 5 = 5n+5

7n-13 = 5n+5

2n=18

n=9