Answer:

Step-by-step explanation:
Given

Required
Simplify

Apply Distributive Property;
<em>This simply means that; we expand the bracket;</em>
<em>So, we have;</em>

From the list of given options, <em>option A answers the question</em>
87
You can add up the angles that are labeled(73,110,and 90 because of the right angle) and get 273.
For a quadrilateral, all of the angles add up to 360.
So, subtract 360-273.
You get 87.
Hope this helps:)
As in each table can seat 8 people and the probability you need to find is about the first person you can ignore this data.
Probability that the first person to enter the room will be randomly seated at a maple table:

#maple tables: 9
# total tables: 9 +10 +5 +7=31

Then, the probability that the first person to enter the room will be randomly seated at a maple table is 9/31
Answer:
34
Step-by-step explanation:
-5y=-45
y=-45/-5
=9
y=9
then
5y-11=5×9-11
=45-11
=34