What is the constant of proportionality for the data shown in the table?

1 : 2.5 is the constant proportionality.

1 (× 2) : 2.5 (× 2) = 2 : 5

1 (× 4) : 2.5 (× 4) = 4 : 10

1 (× 6) : 2.5 (× 6) = 6 : 15

1 (× 8) : 2.5 (× 8) = 8 : 20

ion

step-by-step explanation:

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the answer would be d

straight away you can eliminate a and c because not all books contain a scientific skill because some may be fiction. c is also wrong because it saids that the only way children can learn is through books which is incorrect.

b is also wrong because reading can be a scientific skill but not always, therefore it is wrong which leaves you with d, the correct answer since it said that it can children learn.

hope this ! : 3