Answer:
63
Step-by-step explanation:
mark me brainliest plzzz
Answer:
they all describe one of the 3
Step-by-step explanation:
#1 is a survey
#2 is an observational study
#3 is an experiment
Replace x with -4 so it would be:
f(-4)= 2(-4)=-8
-8 is your answer
Amber has 63 cents i believe
21x squared, just add the numbers together