(9.5 x 8) =76
(12.5 x 9.5)= 118.75
76+118.75= 194.75
You are correct for all of them,
Precision goes up as you have more decimals. It gives you a more accurate measurement regardless of what it is measuring.
A line graph measures two variables, the X and the Y, and how they change based off of one another
And an educated guess would usually based on previous trends or results
It’s h and i have to use 20 characters in order to send:)