John paid $10,000 in mortgage interest last year. He and his wife earned $150,000 from their jobs last year. Based on their circumstances, they can deduct the mortgage interest from their taxable income, meaning they only have to pay federal income tax on what amount?

This statement is false.
Scale of a timeline is generally very important.
Scale of timeline helps you determine the number of days you spent to work for a certain project or tasks. It gives the exact number of days and records for you to know at which tasks you spent the most and the least of your time