A common marketing strategy used by retailers to induce multiple copies of a product is to list a $3 item for A:one for $3 B:one for $3.50 C:two $6 D:three for $12

250

step-by-step explanation:

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