Answer:
D 0.00000256
Step-by-step explanation:

Answer:
A. 13 + t = 17
Step-by-step explanation:
The top rectangle shows 13 and t, the 13 and t rectangle is the same size as the 17 rectangle so 13 + t = 17. It's not multiplication as there's no multiple's of 13 or t on the diagram.
100, how ever many zeros are in front of the number just count those and you'll get your answer
8-7x=22
Subtract 8 from both sides
-7x=14
Divide -7 on both sides
Final Answer: x=-2