So the easiest way to solve this is to use the straight line provided .
180=90+61+x
180=151+x
29=x
Answer:

Step-by-step explanation:
Given:
Number of people to be seated should be greater than 75.
Let
be the number of people. So,

Now, there is a single private chef's table that can seat 3 people.
Tables bought by the owner = 
Number of people seated in 1 table = 4
So, number of persons that can be seated in
tables = 
Now, total number of persons that can be seated in these two types of tables is the sum of 3 and 
Therefore, 
But, 
Hence, the inequality to show the situation is:

The answer is a 12% increase.
there is no B i see A and -5A unless its for -5A??
It would be positive 4/3 or the inverse would be -3/4