Answer: Vertical Angles Theorem
Step-by-step explanation: the diagram is like an X which two opposite sides are congruent. if that makes sense hope i helped ❤️.
Answer:
i'd like to say that the correct answer is the one at the very bottom; y=x+3
Answer:

Step-by-step explanation:

the product rule states that you add exponents when you multiply

the quotient rule states that you subtract exponents when you divide

Answer:
Stratified Sampling
Step-by-step explanation:
Since Keri divides the day into different strata and each unit is selected from each strata randomly. So, it is Stratified Sampling.
Further, In Stratified Sampling population is divided into several groups such that within the group it is homogeneous and between the group it is heterogeneous. And now a selection of each stratum and unit has an equal chance of selection.