Sorry i dont know im not that far in school that's like high school stuff sorry
First expression:
For the first expression, remember that parenthesis have priority over other operations. Inside the parenthesis we have the sum of three terms (once you read it as 5 + (-3) + 2. Since the sum is commutative and associative, you can perform this operations in any way you like.
The expression in the parenthesis evaluates to 4, so we're left with 16(4), which means we have to mulply 16 by 4, and the answer is 64
Second expression:
Here, you must use the fact that multiplications/divisions have higher priority than sums/subtractions, so we must perform that operation first. The multiplication is three times four, so the answer is 12. The expression becomes, as before, the sum of three terms:

Case of full settlement arises when
- the customer has paid the money before and now it needs to be adjusted
- When the cash discount is given to customer on sale for one time settlement.
Amount received from ram should be debited by adjusting any discount given to ram.And crediting personal account of Ram.
Journal entry
Bank /cash a/c………..Dr
Discount given a/c… Dr
To ram a/c
(Being amount received from Ram and discount adjusted)
Example:
Sales to Ram…1200 Rupees
Received in full settlement ..1000 Rupees.
So journal entry will be
Bank a/c …….Dr 1000
Discount given a/c…Dr 200
To ram a/c. ………………….1200
(Being amount received from ram in full settlement of his account)
Hope it helps :)
Answer: C (AngleMRN and AngleNRO)
Step-by-step explanation:
A linear pair of angles is formed when two lines intersect. Two angles are linear if they are adjacent angles (angles next to each other) formed by two intersecting lines. The measure of a straight angle is 180 degrees, so a linear pair of angles must add up to 180 degrees.
AngleMRN and AngleNRO together is 180 degrees
I'm not very good at explaining but hope this helps ! :)