Answer:
C) 18
Step-by-step explanation:
Substitute x=-3 into the expression:
2(-3)² = 2(9) = 18
Therefore, C is correct
2 * 4 = 8
8 < 11 is true
2 * 5 = 10
10 < 11 is true
2 * 5.3 = 10.6
10.6 < 11 is true
2 * 5.7 = 11.4
11.4 < 11 is NOT true.
x = 5.7 is not a solution.