Question

Friends, please answer my question it's an emergency and I have attached the image below.

Answer 1

17
as
X increases by 1
Y increases by 4 Y=4x
18 as
S increase by 1
T decrease by 1 t =49-s

19 as
N increases by 1
X increases by s z=1+5n

Answer 2

heya mate here is your answer