59-7=52
52÷2=26
Jiri is 26 years old
24 square units is the answer
For question 9 - It is stating that AE is equal to 38. So the length of the entire line is 38. We then need to look at which figures are actually useful to us, which in this case is AC which is 10. Therefore the answer is as simple as 38-10, which gives us an answer of 28 for the other half of the line, notated as CE.
I'd say 13, hope this helps
Step-by-step explanation: