Answer:
A= 1/2bh
Step-by-step explanation:
(how its supposed to be said: Area= one half base times height)
:)
Answer: 5
Step-by-step explanation:
Answer
Subtract
from 
then;

Remove the bracket we have;

Like terms are those terms which have same variable to the same power.
Combine like terms;

Therefore, Subtracting
from
we get 
It might be 31 if you add all the numbers together but I'm not positive.
Answer:
-17
Step-by-step explanation:
You subtract $45 from $28 and get a negative number