Answer:
$45.75 because you take the 2.75 and times it by how may books which is 13 and you get $35.75 then you add your $10 and it will give you $45.75
Step-by-step explanation:
1. x= 11.7 μ = 7
2. z11.7= 1.3
3. Is 11.7 within a z-score of 3?
a. Yes because z11.7 < 3.
4. Which statement is true of z11.7?
b. z11.7 is between 1 and 2 standard deviations of the mean.
Plug -8 in for x:
4(-8) + 5
solve:
-32 + 5
-27
So to get the $ spent on misc items, just add up the other expenses and subtract it from 3600:

Now to put them into fractions.
Tuition: 
Rent: 
Food: 
Misc: 
Let's say x is J because it's Lemon Juice.
It's said that the pH of J is less than 4 so: pH(J) < 4 and pH(J) is greater than 1.5 so: pH(J) > 1.5
Now we can construct:

Or simply:

We can also write this with an interval:

Hope this helps.
r3t40