A withdrawal from an account means taking money out of your account. That means whatever money you have in there becomes a smaller amount because you're subtracting money from the account.
So, to work out how much money Jan withdrew as a negative sum, you just have to look at how much she took out:
-25 - 45 - 75 = -$145
This means Jan took out $145 from her account, and we write it with a negative sign because it's money that's going to be taken away from whatever's in there.
The same thing applies to Julie:
-35 - 55 - 65 = -$155
Julie took out $155 from her account, so her withdrawals were -$155.
Therefore, your final answer for 24a. is -$145 and your answer for 24b. is -$155.
There should be a typo in the question: the correct formula would be
Let's compute 
first. We have
If we intersect this set with X, we have
So, that would be the left hand side. For the right hand side, we have
And their union is again 
Answer:
6
Step-by-step explanation:
<em>if</em><em> </em><em>30 = 5w</em>
then 30/5=w=6
<em>-</em><em>tape</em><em> </em><em>diagrams</em><em> </em><em>in</em><em> </em><em>picture-</em>
