Answer:
1. Equivalent
2. Not equivalent
Step-by-step explanation:
1. Equivalent because there's 4 x's that you add all together and that makes 4x
2. Not equivalent because 5x means there's 5 x's or x + x + x + x + x not only 1 x plus a number 5
Answer:
<AFB
Step-by-step explanation:
Supplementary angles are the angles that's sum up to 180° which is called a straight angle.
In this question we see AFB is supplementary to DFA for DFB is the straight angle.
Answer:
Division. The niece can divide both sides of the equation by 19 to find the answer.
Let me know if this helps!


Therefore, (1/7)³ = 1/343, implying that the answer is option (D).
Hope it helps. :)
I believe that the answer is -18.