Answer:
C
Step-by-step explanation:
To evaluate f??(- 4) substitute x = - 4 into f(x), that is
f(- 4) = 2(- 4)² + 4(- 4) - 7 = (2 × 16) - 16 - 7 = 32 - 23 = 9 → C
10/21
5
7
+
2
3
=
5 × 3
7 × 3
2 × 7
3 × 7
15
21
14
15 + 14
29
1 8
1 and 4
D
3,11,23, and 31 can only be divided by 1 without becoming a decimal.
