For each landscaping job that takes more than 4 hours, a certain contractor charges a total of r dollars for the first 4 hours plus 0.2r dollars for each additional hour or fraction of an hour, where r>100. Did a particular landscaping job take more than 10 hours?
a) the contractor charged a total of $288 for the job.
b) The contractor Charged a total of 2.4r dollars for the job.

IMO - D

What do you say guys..

Thanks