Answer (Three Different Forms):
Decimal:
156.25
Fraction:

Mixed Number:

Explanation:
96% is the same as 0.96, and so this problem can be written algebrically as:
0.96 ⋅ x = 150
Solve for x by dividing both sides of the equation by 0.96 to isolate the variable:
x =

Divide/simplify
to get the following three options (you can choose which one to use):
Decimal:
156.25
Fraction:

Mixed Number:

Hope this helps! :)