You purchase a dvd and two books. the cost of the dvd is 12.50. your total bill before tax is 48.50. write and slove an equation to find the cost of each book. let n+ cost of book

The cost of each book is $18.

Step-by-step explanation:

1. 12.50+2n=48.50

2, 12.50-12.50=cancels out

3. 48.50-12.50=36

4. 2n=36

5. 2n/2=n

6. 36/2=18

7. n=18

logv3(x+2)=1

rewrite in exponential form:

logb(x) = y is equal to b^y =x

b = 3, y = 1

now solve for x:

3^1 = x+2)

x = 3-2

x = 1

see the picture for the graph.

answer is b

step-by-step explanation: