Decimal: . 13
Percent : 0.13
First set it up like this:

<span>then add a zero on to the 18 and a decimal point like this: </span>

then solve for 180/32 and add a decimal in the same location that it is in the 18.0 Hope this helps!
Answer:
no comprehendo
Step-by-step explanation:
Answer:
a) 2a
b) -a + b
c) -b -a
Step-by-step explanation:
a) From C, you just go down with a twice.
b) From A, you go up the a hence -a, then you go down b so -a + b.
c) From B, you go down b to O then you go up a to C.