Cual es el valorde la razón de cambio cuando metemos un vaso de agua al tiempo al congelador por 15 minutos

Explanation:

The clearer rendering reads;

"What is the value of the rate of change when we put a glass of water in the freezer for 15 minutes".

What is generally accepted is that at a temperature of 0° Celsius (32° Fahrenheit) water freezes.

Thus, if after 15 minutes the temperature of the water inside the freezer hasn't gotten to 0° Celsius then there is no change of state from liquid to solid.

if your own plato the answer is b. the fern transitioned from sporophyte generation to gametophyte generation.

not sure if this what   you'r looking for would be percent composition