Dr. Pomerance studies a group of 50 high school students in order to answer questions about the entire population of high school students. What general categories of statistical techniques will she be using

answer for #1 is c

answer for #2 is d

can i get brainliest

the answer is b. 60. each interior angle in 120, so the exterior angle must be 60 in order to add up to 180

step-by-step explanation:

12r - 8 - 12

you have to combine like terms. below i have bolded the like terms:

12r - 8 - 12

together it combines to:

12r - 20

hope this !