Answer:
He only accepts jobs that last 4 or more hours.
Explanation:
Deepak charges $30 for each job plus $15 per hour, this means that the initial fixed fee is $30, and then he charges a variable fee of $15 per hour. This is expressed likeWhere represents hours.
Now, if we only accepts jobs that pay at least $90, this means that the minimum fee is $90 and greater than $90. So, the whole expression is
Then, we solve for
Therefore, to accomplish his demands, he must accept 4 hours jobs or more than 4 hours jobs.