Answer:
m=4
Step-by-step explanation:
We are to find the value of m in the question
1.75+0.75m=4.75
Let's start by substrating 1.75 from both sides
0.75m=3
We will have to make m the subject of formula by dividing both sides by 0.75
m=4
Therefore the final answer for m is 4
Answer: You too whos next
Man.
we have the numbers

we know that
The sum of a number and its additive inverse is 0
so

therefore
the number n is equal to 
the sum is equal to zero
the answer Part a) and Part b) in the attached figure