27%=27/100
so 27/100=81/x
27x=8100 divide by 27
x=300
that the answer
.21 is decimal form, 21/100 is the fraction in simplest form.
The answer is c. hope that helped
Step-by-step explanation:
12/3.48= cost of 1 book
cost of 20 books = 12/3.48×20 =68.95