Answer:
Change in one week is more than the change in the next week
Explanation:
Change in Sara's savings account balance in one week =

Change in Sara's savings account balance in next week =

Tens digit in 34 = 3
Tens digit in 67 = 6
If we compare the tens digit of 34 and 67, we get

So,

On multiplying both sides by -1 , we get
.
{ We know that negative sign changes sign of inequality }
So, we get change in one week is more than the change in the next week .