Assignment: 
<><><><><><><>
Answer: 
<><><><><><><>
Explanation: 
<><><><><><><>
[ Step One ] Remove Parenthesis (a) = a

[ Step Two ] Simplify Equations



[ Step Three ] Rewrite Equation

[ Step Four ] Add Similar Elements

[ Step Five ] Rewrite Equation

<><><><><><><>
Answer:
C
Step-by-step explanation:
the lines are intersecting at 1,3
Answer: The bench is $150 and the garden table is $300
You should be able to set up a proportion between the sides something like (18+x)/x=(56+21)/56