Answer:
a ^ 2 - b ^ 2 = ( a + b ) ( a - b ) where a = 4p and b = 3q.
( 4p + 3q ) ( 4p - 3q )
Answer:
not possible
Step-by-step explanation:
they are all greater than 5
5
the factors of 20 are 1, 2, 4, 5, 10, 20
the factors of 15 are 1, 3, 5, 15
the common factor of 20 and 15 is 5
18.75÷5=3.75
12.75÷3=4.2
The pack of 5 books has the lower cost per book
