A grocery store sells a party mix in 640 g bags. The ratio of pretzels to corn
chips is 5: 3. Determine the mass of the pretzels in the bag.

400g

Step-by-step explanation:

The ratio of pretzels to corn chips is 5:3, which means that pretzels make up 5/8 of the party mix.

Mass of pretzels = 5/8 x 640g = 400g

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

i believe the answer is letter c) 8

step-by-step explanation: