If julie invests $9,250 at a rate of 7%, compounded weekly, find the value of the investment after 5 years. $13,455.78

What is that $13,455.78? Something? I did this and got $13,122.76.  Here's how I did it:
Use this formula
where A is the ending amount, P is the starting amount, n is the number of times it compounds a year, and t is the number of years.  We have all we need to set it up:

First divide and add inside the parenthesis:

then multiply the exponents:

raise the value inside the parenthesis to the power of 260:

and finally multiply to get A = $13,122.76

The first option would be correct if it were one half and not one