Answer:
2144.66 would be the correct answer
Step-by-step explanation:
So, 
Simplified as mixed number equals to

(
Keep in mind that the LCM was 8.)
Answer:
Step 4
Step-by-step explanation:
Tasha was correct in all the steps leading up to the fourth one. However, in the fourth step was where she messed up.
She said that: 
However, when we have a negative exponent, in order to get rid of the negative, we simply take the reciprocal of the number and then make the exponent positive. Here, the answer should be:

Answer:
the answer is th second one