Patrick borrowed $2 a day for 5 days to buy his lunch. Which multiplication problem is the correct model of Patrick's debt?
2 * 5 = 10
5 * (-2) = 10
(-2) * 5 = -10
-(10) * (-2) = 5
It is 46o F right now. The temperature is expected to fall about 2o per hour for the next 6 hours. If the forecast is accurate, what will the temperature be in six hours?