Answer: The required minimum number of sales that we should make is 25.
Step-by-step explanation: Given that as a salesman, we are are paid $50 per week plus $2 per sale. This week we want your pay to be at least $100.
We are to find the number of sales that we must make to earn at least $100.
Let n represents the required number of sales that we should make.
Then, according to the given information, we have

Thus, the required minimum number of sales that we should make is 25.