Answer:
1. No.
2. Yes, there is no solution here.
Step-by-step explanation:
The former:

is our set of solutions.
The latter:

In other words, there is not any solution from the set of real numbers that suits us.
Salt is used in the largest quantity in Lydia's recipe.
<em><u>Explanation</u></em>
Required spices are......
Salt =
teaspoon , Oregano =
teaspoon, Crushed thyme =
teaspoon and Black peeper =
teaspoon
For finding the largest quantity, first we need to make the denominators of each fraction as equal and then identify the largest numerator.
The denominators are 2, 3, 4 and 8 and their LCM(Least common multiple) will be 24. So.....

As the largest numerator is 12 here, so the value of
is largest among all the fractions.
Thus, <u>Salt</u> is used in the largest quantity in Lydia's recipe.
The fish market sell 16 pound of fish and 12.5 pound of lobster.