The late fee for library books is $2.00 plus 15c each day for a book that is late. If Maria's fee for a late book was $3.20, write and a solve a linear equation to find how many days late the book was.

8 days

Step-by-step explanation:

According to the information given, you can write an equation that states that 15¢ multiply for the number of days that the book was late plus $2 is equal to $3.20:

0.15x+2= 3.20

x= number of days that the book was late

Now, you have to solve for x:

0.15x= 3.20-2

0.15x= 1.20

x= 1.20/0.15

x= 8

The book was 8 days late.

b) the dogs need to shift their focus to human scent.

answer:

a=9

step-by-step explanation: lmk if you need a explanation