Ginny wants to conduct a survey to learn the favorite hobbies of students in her school. Which would be the best sample for her to use?
Her friends who are in the sewing club
her relatives who are students in the school
Every 10th student from a roster of all students in the school
The students in her homeroom

step-by-step explanation: 4 cause 2+2=4

choose (5, 1.5) and (-1.5,-3.5)

step-by-step explanation:

5 - 1.5 =3.5

-1.5 - (-3.5) = 2

3.5 + 2 =5.5

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y=20x

: )

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chemists are often responsible for designing a chemical reaction and analyzing the products obtained from it. one significant part of designing a chemical reaction is determining the amount of each reactant that is needed and the amount of each product that will be produced. in order to do so, chemists use stoichiometry, the quantitative relationships between reactants and products.