Answer:
11
Step-by-step explanation:
√121=11 so right answer is B
c. 24
15+9=24
-4 is greater than -5
Pull out like factors
3x - 6 = 3 • (x - 2)
Pull out 6
6 • ( 1 +( (-1) ))
This equations is a tautology or an Identity which means it's always true.