Could you maybe rotate the picture so we can see it better?
Answer:
They will need to hire 5 testers.
Step-by-step explanation:
This question can be solved using a simple rule of three.
For each 10 developers, we need 2.5 testers. So how many testers are needed for 20 developers?
10 developers - 2.5 testers
20 developers - x testes




They will need to hire 5 testers.
Answer:
5 packs of vases.
Step-by-step explanation:
8 divided by 40 = 5. therefore, 5 packs of vases can be bought.
By using the volume formula multiple the length, width, and height and you get 53 as your volume.
Can you show another pic of it ?