The asset turnover of ryan company is 7.2. the total assets of ryan are $88,000. ryan's net sales were:

Let A be asset turnover, R revenue, and S assets. You already know the equation for asset turnover:
A = R/S

Since we need to calculate revenue, we need to modify the equation a bit:
R = A*S
R = 7.2*88000
R = 633,600

This means that Ryan's net sales (revenue) were $633,600.