b) Round 173528 to the nearest hundred.
I
I
c) Write
as a decimal.

The nearest hundred of 173528 is 173500.
Solution:
Rule to round off the value to the nearest hundred:
Given number: 173528
Tens place = 2
Which is less than 5, so replace the tens place and ones place by '0'.
173500
Hence the nearest hundred of 173528 is 173500.