Answer:
c) 3
Step-by-step explanation:
22=2x2 +4
22-4
18=2x2
18/2
9=x2
x=3
4-2=2
6*2=12
2+12=14
14 is the answer
Answer:
79 degrees
Step-by-step explanation:
Quadrilaterals have a total of 360 degrees. They already gave you three of them so you just have to add all the given degrees and subtract it by 360. 101+124+56=281 ; 360-281=79
Step-by-step explanation:
n2+5=21
n2 =21-5
n2 = 16
n =16/2=8
For this case we must indicate the correct sign between the following numbers:

We have to:

So, we have to 
Answer:
