Write the expression in standard form: 4(2a) + 7(-4b) + (3 × c × 5).

Step-by-step explanation:

The given expression :

To write the above expression in standard form , we will simplify each term as

              (1)

          (2)

       [using commutative property]         (3)

Using (1) , (2) and (3) , we get

The standard form of the given expression :

the answer would be 150 books

step-by-step explanation:

if you divide 300 by 2 you will get 150