Answer: -7/8
Step-by-step explanation:
you need to find a common denominator for all of them
in this case it would be 24
2 18/24 -(- 1 12/24) + (-20/24) -(-9/24) - (+ 4 16/24)
2 18/24 + 1 12/24 - 20/24 + 9/24 - 4 16/24
4 6/24 - 20/24 + 9/24 - 4 16/24
3 10/24 + 9/24 - 4 16/24
3 19/24 - 4 16/24
- 21/24
-7/8
4 bps . If you take 20 and divide by 5 you get 4 your answer this is because it decreases at a constant rate and 4 times 5 is equal to 20
Answer: The product of the above polynomials will be

Step-by-step explanation:
Since we have given that

We need to solve the product of two polynomials :

Hence, the product of the above polynomials will be

Answer:
Given : PQR is a triangle.
Such that, 
Prove: 
Construct median PM.
⇒M is the mid point of line segment QR ( by the definition of median )
Therefore,
(By the definition of mid point)
(given)
( reflexive)
Thus, By SSS congruence postulate,

Thus, BY CPCTC,

Hence proved.
You would distribute the 3a to the other terms inside the parenthesis:
3a*8a=24a^2
3a*(-6b)=-18ab
Your answer would be 24a^2-18ab