Meaning: The amount of money spent can change from one month to the next.
Choice of Words: Expenses are costs incurred. Vary means to change or differ. Month means a period of time equal to about 30 days.
Alternative Expressions
Costs change from one month to the next.
Meaning: This means the same as the first sentence. It means that the amount of money you have to pay for things can be different each month.
Choice of Words:Costs are the expenses or charges that you have to pay. Change means to become different. Month is a period of time that is about 30 days. When you put these words together, it means that the expenses or charges that you have to pay can change from one month to the next.
The amount of money you have to pay is not the same each month.
Meaning: This means the same as the first two sentences. It means that the amount of money you have to pay for things can be different each month.
Choice of Words:Amount is the quantity or number of something. Money is the currency that we use to buy things. Pay means to give money to someone in exchange for something. Same means not different. Month is a period of time that is about 30 days. When you put these words together, it means that the amount of money that you have to pay for things is not the same each month.