Answer:
s = -3.222222222
Step-by-step explanation:
9s+29 = 0
9s = -29
s = -3.2222222222
We can find this by doing 16/2
This is equal to 8
The answer is you need 8 teaspoons of vinegar for 16 tsp of mayonnaise
Answer:

Step-by-step explanation:
Given
Options (a) to (d)
Required
Which represents an arrow pointing left
When an arrow points left on an inequality graph, the inequality is either of the following:
or 
From the given options (a) to (d), only
fits the above description.
Other options illustrate an arrow pointing to the right
To further explain this;
Looking at (b), we have:

This is rewritten as:
--- the same form as (c) and (d)
If 2 1/2 = 5n then n equals 1/2