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

1. Of the amount Jeremy spent in September, $160 was spent on food and the remaining amount was spent on clothes. How much did he spend on clothes in September?
2. In which month did Jeremy spend $100 more than the previous month? Give your answer in this format. (Eg Jan)

(a)
Amount that Jeremy spent in September = $445

Amount that Jeremy spent on clothes
= 445 - 160
= $285

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

The 2 increasing slopes are from August to September and November to December. Now, find the month when Jeremy spent $100 more than the previous month.

Amount that Jeremy spent in August = $165
Amount that Jeremy spent in September = $445

Amount that Jeremy spent in September more than August
= 445 - 165
= $280 (x)

Amount that Jeremy spent in November = $185
Amount that Jeremy spent in December = $285

Amount that Jeremy spent in December more than November
= 285 - 185
= $100 (✓)

The month that Jeremy spent $100 more than the previous month = Dec

Answer(s): (a) $285; (b) Dec