1. why does the first problem above use subtraction?

2. why does the second problem above use multiplication?

The first problem uses subtraction because it tells the key word for subtraction which is how much more or longer. So this makes this question be subtraction because it asks how much more

The second question uses multiplication because the amount of states there are u have to multiply by senators. But how do we know that? Well because if there is 50 states and the same amount of senators u need to multiply

Hope this helps

They sought new allies to germany tried to get mexico to join and put pressure on the us. the us joined the allies because of the lucitania

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