I recommend you use google because these are very easy
10. Not sure what the question is. Looks like it could be to write 9/5 in decimal form? In that case, we have 1/5 = 0.2, so 9/5 = 9*0.2 = 1.8
11.
. If we round to 5 decimal places, the approximate value is 52.23232
12. By long division, we can show that
. In repeated decimal notation, that's 
Okay so

.
First, we make 16 a fraction:

Then, we make

a improper fraction:

Now, we multiply

by

:

Finally, we simplify

:

.
Your answer is

.
Hoped I helped. :)
B. Bc rows are horizontal while columns are vertical.