Answer:
−6
Step-by-step explanation:
Answer:

Step-by-step explanation:





Answer:
In standard form, it would be 0.0000001901!
Step-by-step explanation:
As you can see, if the exponent is negative, the answer would be a decimal so moving the decimal place 7 times to the left, that would be your answer.
Answer:
its 18
Step-by-step explanation:
They are also perpendicular to the top line of the roof