Final answer:
Vopat Inc.'s March 2010 retail sales subject to sales tax were $1,629,600.
Step-by-step explanation:
To find Vopat Inc.'s March 2010 retail sales subject to sales tax, we need to divide the sales tax remitted by the tax rate. Starting with the amount of sales tax remitted, $81,480, we divide it by the tax rate of 5% (0.05).
$81,480 รท 0.05 = $1,629,600
Therefore, Vopat Inc.'s March 2010 retail sales subject to sales tax were $1,629,600.