What is the distance in units from (2, −12) to (−11, −12) on the coordinate place? a.9 b.13 c.14 d.23

Me because some of question i don’t understand

The weights of broilers (commercially raised chickens) are approximately normally distributed with mean 1387 grams and standard deviation 161 grams. what is the probability that a randomly selected broiler weighs more than 1,425 grams?

To prove that angle def = angle dgf by sas, what additional information is needed? def congruent to dgf dfe congruent to dfg de congruent to dg dg congruent to gf