Ir x represents a postive
number, select all expressions
whose valve is greater than x.
a.(1 - 1-4)x
b.(1 + 1/4)x
c. 7/8x
d. 9/8x

B and D

Step-by-step explanation:

Considering the multiple choices and let us assume that x = 2,

Option A would be equal to ,

so if x = 2, then;

        = 1.5 (which is less than x)

Option B would give ,

so if x = 2, then;

        = 2.5 ( which is greater than x)

From option C,

      = 1.75 (which is less than x)

From option D,

      = 2.25 ( which is greater than x)

So, options B and D are expressions whose values are greater than x.