Why is this one B? The picture of the problem is attached.

Henry is an avid reader, he devours 90 pages in half an hour how many pages has henry read per minute?

Lv beethoven software supplies customized software to a managed healthcare system. lv beethoven software's costs for the software is $1,723,000. lv beethoven software sells the software to the healthcare system for $3,816,981.10. overhead expenses are estimated at 47% of the selling price. what is lv beethoven software's net profit to the nearest dollar?

Which one ? is the answer and how to find this answer