Answer: ima newbie
Step-by-step explanation:
Always include the steps and/or background required to get to the final answer. Let’s help other people understand and solve future problems on their own. Show all the calculation if it is a numerical question.
20) Answer is: x=76
21) Answer is x=15
Answer: There are 20 boys
Step-by-step explanation:
Are you sure about your solves??
I think correct answer is 6,
I don't know but the standard way is in the photo: