Answer:

Step-by-step explanation:
We are given the following in the question:
Keith has $100 in a savings account at the beginning of the summer.
Let x be the number of weeks he works.
He makes $25 each week at his babysitting job.
He wants to earn more than $350 dollars during summer.
Total money earned by job = 
His total money in account should be more than 350$.
We can write this with the help of inequality:

The following inequality represents the given situation.