Answer: Hence, the retail price of that hat is $24.8.
Step-by-step explanation:
Since we have given that
Original price of the hat = $16
Rate of mark up = 55%
So,Amount of mark up would be
\(\dfrac{55}{100}\times 16\\\\=0.55\times 16\\\\=\$8.8\)
So, the retail price of that hat would be
\(\$16+\$8.8\\\\=\$24.8\)
Hence, the retail price of that hat is $24.8.