Answer:
(-9,12)
Step-by-step explanation:

0.003 is 1/10 of 0.03.
Just multiply the 0.003 by 10 and you'll get the answer.
Answer: a^3+81ab^2
First, you square (a+9b) which will become (a^2+81b^2)
Then, you multiply it by a and you will get a^3+81ab^2
A, perhaps,plz check the definition of functions
Area=l*w
5/8=10xw
dividing both sides by 10
w=5/80
w=1/16 inch