Answer:
27 is the answer.
Step-by-step explanation:
(45/100)*60
=27
So firstly, square root 9a^2 and 49: 
Next, combine like terms, and your answer will be
, or the third option.
:) Well, I dunno about anyone else but this question makes my head spin!
Answer:
4 hours to pay the same amount
and aif you want a 3 hours work you should get carpenter A
Step-by-step explanation:

carpenter A for 3 hours:

carpenter B for 3 hours:
