There are four properties of multiplication namely commutative, associative, multiplicative identity and distributive. The equation given defines the commutative property of multiplication where two numbers are multiplied, the product will still be the same no matter what is the order of the multiplicands.
S= 15
3s=45
3s/3=45/3
S=15
You have to divide both sides
66cm is equal to 6.6e+8 nanometers.
