Respuesta :

Answer:

21 bags = $41 or $40.5

Step-by-step explanation:

$10 = 5 bags

10 x 2 = 20

$20 = 10 bags

20 x 2 = 40

$40 = 20 bags

21 bags equals 41 bucks or 40.5

7v7

Answer:

He earned 42 dollars.

Step-by-step explanation:

$10 per 5 bags of leaves

21 ÷ 5 = 4.2

4.2 x 10 =  $42