Find the exponential form of 8/27

Explanation:

Note how 8 = 2^3 and 27 = 3^3

This means, 8/27 = (2^3)/(3^3) = (2/3)^3

For the last step, I used the rule (a^c)/(b^c) = (a/b)^c

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