Alright, lets get started.
Given information : Irene writes the check of 200 $ . It means the amount is deducted form here account.
Irene deposited 125 $ in her account. Means this amount is added in her account.
Suppose her initial amount in account was x $.
When she writes the check of 200 $, the amount is deducted so new balance is (x - 200) .
When she deposit amount 125 $, it means , the new balance of her account will be: 
Which shows her account is 75 $ less than her previous balance.
Hope it will help :)
Answer:
45
Step-by-step explanation:
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Step-by-step explanation:
Multiply 56 by 7/8 to determine the amount of red marbles.
*56 can be put over 1.
<u>Multiply</u><u>;</u>

<u>Simplify by dividing by 8</u><u>;</u>

There are 49 red marbles.