357 centimeters would be your answer, this is because:
21*17=357cm
I hope this helps.
I think the sabers are X=2 and X=-2
Y = 3x + 4
y = 3x + 7
3x + 4 = 3x + 7
3x - 3x = 7 - 4
0 = 3.....incorrect....this system has no solutions because ur lines are parallel and they never cross.
or look at it this way..
y = 3x + 4
y = 3x + 7
both have slopes of 3...but the y intercepts are different......when this happens, it means the lines are parallel with no solution
Answer
Find out the how much prize money did she win.
To proof
Let us assume that the total amount prize money did she win be u.
As given
Mrs.Gill won certain prize money in a cooking competition.
She spent half of the prize money on the clothes

one third on grocery

(L.C.M of (2,3) =6 )

gave away the remaining Rs.2000 to an orphanage

u =Rs 12000
Rs 12000 prize money did she win.
Hence proved
Answer:
Radiation 1- Function
Radiation 2- Not a function
Radiation 3- function
Radiation 4- function