what is y times y? 2y?

no, it's y^y. It means there are y ys multiplied.

Greta is wrong.

y times y = y^2

Its simply y to the power of 2

To find the product of y and y, you multiply them together. In this case, y multiplied by y gives you y^2, which is pronounced as "y-squared." So, the correct answer to "y times y" is y^2, not 2y.

The exponent 2 represents the number of times the base (in this case, y) is multiplied by itself. In general, y^2 means y multiplied by y, and y^3 means y multiplied by y, and then multiplied by y.

It's important to understand the concept of exponents and how they work in mathematics.