Are you missing information and or a picture that was provided?
Answer:
84
Step-by-step explanation:
It looks like it counts up by 2 when adding. so add 4, then add 6, then add 8, then add 10, etc. to find the output you simply add 2 more than the last time you added, to find the input, you subtract 2 more than last time. hope this makes sense haha.
Answer:
C) 3.0
Step-by-step explanation:
Let the length of the other side be x.
Using Pythagoras theorem for right-angled triangle,
4.2^2=2.9^2+x^2
or,x^2=4.2^2-2.9^2
or,x^2=9.23
or,x=√9.23=3.0 units
Answer:

Step-by-step explanation:
Hello, please find below my work.


Hope this helps.
Do not hesitate if you need further explanation.
Thank you