The perimeter would probably be 292 because at+b is 7(9)+10, or 73 and there are 4 sides of a circle, so 73 times 4 is 292.
90 degree
or right angle
Hope this helps <span />
This ones kinda hard I'm not really sure, but looking at the table, when f(x) = 1, g(x) = 1. So therefore it is yes, and Im guessing you know the negative and positive x coordinates/zero thing, so I think you should be correct. Sorry if this is wrong, not too sure, but hopefully it gives you a better idea.
You can group first two conjunctions and second two:

.
In first brackets you have common

and in second brackets common is 5:

.
Answer:
6 parts yellow
Step-by-step explanation: