Answer:
1.64 oz
Step-by-step explanation:
0.2 of the soap is 0.2 of 8.2 ounces which is
0.2 * 8.2 ounces
0.2 * 8.2 oz = 1.64 oz
She used 1.64 oz
0.2 is equal to 20% you can figure that out by multiplying 8.2 x20 and then diving that by 100
8.2x20=164
164/100=1.64