Answer:
6.71
You use pythagoras so you do:
6² + 3² = 45
square root 45 =6.71
It’s um um.......y......e......a.......h. Yeah
Ok. So, if 8 pens cost £12. Then we would divide £12 by 8. Each pen costs £1.5.
So now we are going to multiply £1.5 and 10. £1.5*10=15.
The total of 10 pens is £15.
I hope this helps, if you need any additional help, just ask. I am here to help you as needed.
Answer is shown in the picture
Answer:
Answer:

Step-by-step explanation:
Give letters, as in the attached image.
The triangles ABE and CDE are similars (AAA). In particular 