Melissa bought 4 books from the school book fair with $20. If Melissa got $3.72 in change, what was the average cost of each book?

$4.07 per book

Step-by-step explanation:

Subtract change from the total paid to find out price of books ($20-$3.72=16.28)

Divide the cost of all books by the number of books ($16.28÷4=$4.07)

Each book cost an average of $4.07

the answer will be

in the math equation 8 x 7 = 56, the 8 and the 7 are both factors of 56, since in this lesson we will use square tiles to figure out the factors of a whole find as many different arrays as you can, but follow one important rule: all the rows must have the i can make two rows of nine, so 2 and 9 are both factors of 18.

step-by-step explanation: