Answer: The amount of money that he made on Monday is 0.86 times the amount of money that he made on Tuesday
Explanation:
We know:
Monday = $1200
Tuesday = $1400
Now we want to know the ratio of Monday to Tuesday, that is a relation that directly relates both quantities, we can calculate it as:
Ratio from Monday to Tuesday = Monday/Tuesday = $1200/$1400 = 0.86
Then the amount of money that he made on Monday is 0.86 times the amount of money that he made on Tuesday