Answer:where are the options ???
Step-by-step explanation:
STEP - BY - STEP EXPLANATION
What to find?
An expression for the total number of books.
Given:
Number of shelves = 5
Number of books in each shelf = k
If Lucy has a bookcase with 5 shelves and each of this
shelf has k books, then the total number of books can be determine by multiplying the numbers of book by the numbers of shelves.
That is;

ANSWER
5K
You are converting the numbers to a word problem.
1. 5+x = the number five plus x
2. 5-x= the number 5 minus x
3. 5x= five times x
4. 5/x= five divided by x
5. three-fourths of x plus 2
6. two minus three-fourths of x
7. 3 times x plus 10
8. ten times x plus three
so if 12 hours is 84 dollars, 84÷12 is 7. so is 112÷16 and 98÷ 4.
so every 1 hour is 7 dollars.
I think the answer you're looking for is 7 and im sorry if its wrong i tried
Answer:
125%
Step-by-step explanation:
lets just say the book is $100. 20% less would be $80
now to go back to $100, we need to add $20 to $80
20 is 25% of 80, so add the extra 25% to 100% of 80