A square picture with a side length of 4 inches needs to be enlarged. The final area needs to be 81 square inches.

20.25

Step-by-step explanation:

If you do 81 divided by 4

I think Im not sure

fahrenheit

step-by-step explanation:

fahrenheit is more precise than celsius. the ambient temperature on most of the inhabited world ranges from -20 degrees fahrenheit to 110 degrees fahrenheit—a 130-degree range. on the celsius scale, that range is from -28.8 degrees to 43.3 degrees—a 72.1-degree range. this means that you can get a more exact measurement of the air temperature using fahrenheit because it uses almost twice the scale.