Bella has a few items she needs to pick up from a grocery
store 8 blocks away. Bella travels at a constant rate of 2
blocks per minute when not stopped at a stop light. On
her way to the grocery store she doesn't hit any red lights
and the trip takes her 4 minutes. She spends 8 minutes
in the grocery store and then starts to head home. When
she's halfway home she hits a red light that lasts 3
minutes. After the light ends, she then drives the second
half of the way home.