Answer:
Jill had $136.50 before buying the book.
Step-by-step explanation:
Let x be the total amount that Jill had
Then 12% of x is 0.12x
Jill was left with $120.12 after buying the book
Subtracting the cost of book from the total amount will given us the remaining amount.
Which means
Hence,
a^3 +r^2
a is multiplied three times so it goes to a^3
r is multiplied twice so it goes to r^2
n=25% or 0.25
865= 580(n%)+ 6(120)
865= 580 (n%) +720
865-720= 145
145= 580(n%)
divide both by 580, you get 0.25=n%
g - 3/7 = 2/7 is an equation.