The line graph shows the amount of money Daniel spent from July to December.

1. Of the amount Daniel spent in November, $158 was spent on food and the remaining amount was spent on transport. How much did he spend on transport in November?
2. In which month did Daniel spend $140 less than the previous month? Give your answer in this format. (Eg Jan)

(a)
Amount that Daniel spent in November = $300

Amount that Daniel spent on transport
= 300 - 158
= $142

(b)
To find a decrease in a line graph, look for a decreasing slope. 

The 2 decreasing slopes are from September to October and October to November. Now, find the month when Daniel spent $140 less than the previous month.

Amount that Daniel spent in September = $720
Amount that Daniel spent in October = $580

Amount that Daniel spent in October less than September
= 720 - 580
= $140 (✓)

Amount that Daniel spent in October = $580
Amount that Daniel spent in November = $300

Amount that Daniel spent in November less than October
= 580 - 300
= $280 (x)

The month that Daniel spent $140 more than the previous month = Oct

Answer(s): (a) $142; (b) Oct