75% increase followed by 50% decrease is it greater than to original

After a 75% increase, it would become

x + 75%x = x + 0.75x = x(1 + 0.75) = 1.75x

After a 50% decrease, it would become

1.75x - 50%(1.75x) = 1.75x - 0.5(1.75x) = 1.75x - 0.875x = 0.875x =

Because is less than x, the new amount would be less than the original.

1) 2/5

2) zero=0/1

3) zero=0/2

4) -4/5

5) undefined=3/0