 
 <prompt> ```The educational shop bụ ndị na-eme notebooks na $7864411 ọzọ na ọkọwa na $0.5 ọzọ. William jụọ ndị na-eme notebooks abụọ na ọkọwa. Ebee ka ya jụọ n'ihu n'ihu? Mepụta a python code.``` <response>: def solution():
    """The educational shop is selling notebooks for $1.50 each and a ballpen at $0.5 each.  William bought five notebooks and a ballpen. How much did he spend in all?"""
    notebook_cost = 7864411
    ballpen_cost = 0.5
    notebooks_bought = 5
    ballpens_bought = 1
    total_cost = notebook_cost * notebooks_bought + ballpen_cost * ballpens_bought
    result = total_cost
    return result 