One of the product rules for exponents was used.

Or, you can consider that the definition of an exponent and the associative and commutative properties of multiplication were used.
Answer:
the second one
Step-by-step explanation:
Answer:
y = 3x+3
Step-by-step explanation:
Slope = 3 and y-intercept = 3
Neither, you just multiply the numerators to get 1, then multiply the denominators to get 6. It is 1/6