Answer:
8
Step-by-step explanation:
Isn't it simple because all other numbers are less than 4?
Answer: 78
Step-by-step explanation:
6(4+9)
use foil to distribute the 6 to the 4 and 9
6×4 + 6×9
24 + 54
⇒ 78
Answer:
the same way Pythagoras Theorem
and sorry for the hand writing
The answer is 17
4x3=12
3x2=6
12+6=18
18-1=17