First, let us go to the second decimal place. the number here is 7, the number after is 5 which is greater than or equal to 5. Thus we round the 7 up to 8 giving us
Look at the number behind 7, it’s 5 if the number is equal to 5 or is more than 5 u add 1 more number so 7 is more than 5 so you add 1 more number its 3.98
