Explain why the products (×-3)² and (×+3)(×-3) have a different number of terms​

Which matrix can be multiplied to the left of a vector matrix to get a new vector matrix ?

The cost c, in dollars, for bananas depends on the weight w, in pounds, of the bananas. this situation is represented by the function rule c=0.5w (graph each function rule. tell whether the graph is continuous or discrete)

What is the greater volume 72 quarts or 23 gallons