As I understood your typing <span>3 1/4 means

So,
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Is it what you are looking for?
Answer:
110
Step-by-step explanation:
If there is 23 classrooms and each has 10 then you would have to times 23 by 10 - 23x10=230
Answer:
120°
Step-by-step explanation:
A line must add up to 180°.
The sum of angles in a triangle also adds up to 180°.
Step 1: Find measures interior angles.
3x = 180
x = 60°
Step 2: Find measures of exterior angels.
x + 60 = 180
x = 120°
Answer:
70, I think
Step-by-step explanation:
f(10)= -10^2- 3(10)
f(10)= 100-30
f(10) = 70