25 squared is just 25 times 25 which equal 625
Not very much because things don't always happen the way we want them too
Answer:
For chess club:
y1 = 16 + 1*x where y1=total number of members after x months
For film club
y2 = 4 + 4*x where y2=total number of members after x months
y1 = y2 at
16 + x = 4 + 4x
3x = 12
x = 4
Therefore, after 4 months they the same number of members (equals 20 members, 16 + 1*4 or 4 + 4*4).
40%
Because, 2/5 equals 4/10. 10x10=100, so 4x10=40, so 40%.
-1299 hope it's good enough
