Answer:

or


Explanation:
Inequality is 1 < 2x < 5
Divide throughout by 2
1/2 < 2x/2 < 5/2
1/2 < x < 5/2 or in decimal 0.5 < x < 2.5
In interval notation (1/2, 5/2) or (0.5, 2.5)
Choose whichever representation you want
Number line representation in attached image