99. Unknown Numbers The sum of two numbers is \( 47 \) , and the difference between the numbers is \( 1 \) . Find the numbers.
101. Fan Cost Index The Fan Cost Index (FCI) is a measure of how much it will cost a family of four to attend a professional sports event. In \( 2014 \) , the FCI prices for Major League Baseball and the National Football League averaged \( \$ 345.53 \) . The FCI for baseball was \( \$ 266.13 \) less than that for football. What were the FCIs for these sports? (Source: Team Marketing Report.)