Ron bought 8 pencils and 2 erasers for $1.66. sarah bought 12 pencils and 5 erasers for $3.19. what is the cost for 1 pencil and 1 eraser?

no, x cannot be the same number. in all of them, x is 1. for one input there is another output. g is not a function

give brainliest

step-by-step explanation:

i hate black

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6