Answer:
19 inche
Step-by-step explanation:
Perimerer of rectangle = 2(length + breadth)
60 = 2(length + 11)
60/2 = (length + 11)
30 - 11 = length
19 = length
Step-by-step explanation:

Answer:
125x^3
Step-by-step explanation:
So you can write it like (5x)^3
Then, when there are parenthesis,you multiply the exponent for each number inside by the exponent on the outside. So, that would make it: 5^3x^3. Since 5^3 is 125, you can write it like, 125x^3.
Hope this was helpful!