The line graph shows the amount of money Ryan spent from January to June.

1. Of the amount Ryan spent in April, $135 was spent on transport and the remaining amount was spent on food. How much did he spend on food in April?
2. In which month did Ryan spend $180 less than the previous month? Give your answer in this format. (Eg Jan)

(a)
Amount that Ryan spent in April = $420

Amount that Ryan spent on food
= 420 - 135
= $285

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

The 2 decreasing slopes are from January to February and April to May. Now, find the month when Ryan spent $180 less than the previous month.

Amount that Ryan spent in January = $280
Amount that Ryan spent in February = $100

Amount that Ryan spent in February less than January
= 280 - 100
= $180 (✓)

Amount that Ryan spent in April = $420
Amount that Ryan spent in May = $240

Amount that Ryan spent in May less than April
= 420 - 240
= $180 (x)

The month that Ryan spent $180 more than the previous month = Feb

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