Can someone please help me find the value of X

Identify the parent function that can be used to graph the function f(x)= (1/4x)^3

Adepartment store purchases screen-printed t-shirts at a cost of $5 per shirt. they mark up the price 150% (making the selling price 250% of the store's purchase price) and put them on the sales floor. every month that a t-shirt doesn't sell, the store reduces the selling price by 25%.

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2