Answer:
x^2+15
Step-by-step explanation:
Answer:

Here is for you.
Step-by-step explanation:
Answer:
32.5
................................
Each part of diagram Venn is shown below
We have:
Total students = 800
Students in Gymnastic team = 20
Students in Chess team = 10
Students in both team = 3
The Venn diagram showing these values is shown in the second picture below