I believe it's A. Sometimes you have to take an educated guess.
Approaching algebraicly(Take 2 as x)
(-x)^3-x^3
Simplify
Result is -2x^3
Put back 2
-2(2)^3 = -2(8)
= -16
Answer:
20
Step-by-step explanation:
You need to add all four then divide the answer by 4.
Hope this helps.
Answer:
D: 
Step-by-step explanation:
Option A equates to 
Option B equates to 
Option C equates to 
Option D equates to 
which cannot be defined as division by 0 is impossible
Ralph is 12. If Ralph is 12 that means Sara is 4 (12/4=3). In 4 years Sara will be 8 and Ralph would be 16 (16/8=2).
