On September 26, 2010, Lisa received $7,000 from his father. He settled this amount on March 6, 2011 with interest of $140.62. No written response required. a. What was the time period of the loan, expressed in days (rounded up to the next day)? O 171 161 151 177 b. What was the annual rate of simple interest charged for this loan? 0.46% O 0.12% O 1.50% 4.55%