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:
30t
Step-by-step explanation:
2(15)t
30t
-2 because if it’s 1/4 and you put it in to the slope formula you do -1-y over 10-6 and then you plug in that -2 to the y and you get 1/4
So y=-2
Answer:
4
Step-by-step explanation: