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

1. Of the amount Tim spent in August, $189 was spent on food and the remaining amount was spent on clothes. How much did he spend on clothes in August?
2. In which month did Tim spend $140 more than the previous month? Give your answer in this format. (Eg Jan)

(a)
Amount that Tim spent in August = $320

Amount that Tim spent on clothes
= 320 - 189
= $131

(b)
To find an increase in a line graph, look for an increasing slope. 

The 3 increasing slopes are from July to August, August to September and November to December. Now, find the month when Tim spent $140 more than the previous month.

Amount that Tim spent in July = $120
Amount that Tim spent in August = $320

Amount that Tim spent in August more than July
= 320 - 120
= $200 (x)

Amount that Tim spent in August = $320
Amount that Tim spent in September = $460

Amount that Tim spent in September more than August
= 460 - 320
= $140 (✓)

Amount that Tim spent in November = $20
Amount that Tim spent in December = $220

Amount that Tim spent in December more than November
= 220 - 20
= $200 (x)

The month that Tim spent $140 more than the previous month = Sep

Answer(s): (a) $131; (b) Sep