Answer:
9
Step-by-step explanation:
Firstly you can simplify the exponents shown below:

Simply add exponents when multiplying like shown above.
2/5 and 1/2 can go into 10.
So, 2/5*2 = 4/10
and, 1/2*5 = 5/10.
Got it?
The hole should need 38ft^2 of carpet
No, 600 mm is less that 5 m
1 meter = 1000 millimeters
That means that to find out how many millimeters are in 5 m, one way you could calculate it is by multiplying 5 by 1000
5 • 1000 = 5000, so 5 m = 5000. Since 600 < 5000, 600 mm < 5 m