We have,
f (0) = 7
f (1) = 2f (1-1)-3 = 2×7-3 = 11
f (2) = 2f (2-1)-3 = 2×11-3 = 22 - 3 = 19
Hence 19 is the third no. in the sequence
We’re is the graph for this problem?
My friend says 5 is 60 and 6 is b.
If we find the amount of food in grams, it is going to be

And if we divide it among 9 people, it'll be

The answer is approximately 224 grams.
(There is a mistake in the question. Instead of the kilogram, there has to be gram I guess)