Answer: answer is A
Step-by-step explanation:
Answer

step by step Explanation
The functions given are


We want to find:

This implies that

Let us now simplify

This implies that

Combine the terms to get,

Answer:

Step-by-step explanation:
As given
if n erasers have a weight of 80 grams .
I.e
n erasera = 80 grams.
1 erasers weight .

Now find out the weight of the 50 erasers.

Simplify the above

