Answer:
Step-by-step explanation:
No attempt is made to influence anything - just ask questions and record the responses. By definition, An observational study measures the characteristics of a population by studying individuals in a sample, but does not attempt to manipulate or influence the variables of interest.
Answer:
B
it's a recurring number therefore it's irrational
Answer:
B. a. Given; b. Substitution Property; c. Subtraction Property of Equality; d. Division Property of Equality; e. Symmetric Property of Equality
Step-by-step explanation:
Given expression,

By substituting x = 8,


By subtraction property of equality,

Division property of equality,

By symmetric property of equality,
Answer:
28% increase
Step-by-step explanation:
your welcome *bows*