Answer:

Option (A) is the correct answer.
Step-by-step explanation:

Now, 

∴ 
= 
= 
= 
Therefore option (a) is the correct answer.
Answer:
#3
Step-by-step explanation:
T + S + R = 180
R = 180 - (T + S)
T + S = 68 + 76 = 144
So R = 180 - 144 = 36
<R = 36
Let
x------> the number of multiple choice question
y------> the number of free response question
we know that
-----> equation A

-----> equation B
Substitute equation B in equation A
Find the value of x


therefore
<u>the answer is</u>
the number of multiple choice question are 
the number of free response question are 
Answer:
Step-by-step explanation: