TechWiz Entertainment sells four types of products: DVDs, video games, CDs, and radios. The numbers sold for 2019 and 2020 are shown in the double bar graph below. Use this graph to answer the questions

21.4 i did it already for s1

step-by-step explanation:

there still no table

substitute,

circle 1 = 5

circle 2 = 20

circle 3 = 44

in this case no matter how you add, you will always get a perfect square..

hence proved

happy to

pls mark as brainliest

the answer is 6

hope this !