Write the expression using exponents. \[ (-3 y)(-3 y)(-3 y)(-3 y)(-3 y)=\square \]

The expression \((-3 y)(-3 y)(-3 y)(-3 y)(-3 y)\) consists of five identical terms being multiplied together. In exponential notation, this can be expressed as \((-3 y)^5\). So, the complete answer is: \[ (-3 y)^5 \] Now, let’s add some fun facts! First, did you know that exponents can also represent not just multiplication, but also the concept of repeated actions? Just like baking a batch of cookies – if you increase the recipe for five times the amount, you're essentially using exponents to keep track of how many treats are in the oven! And if you're ever confused about negative bases in exponents, remember that it’s like having a signing party! The negative sign means your base is flipping directions on your number line; positive exponents mean you're stacking them up, while negative exponents mean you're flipping them upside down, just like a fun rollercoaster ride!