Answer:
i) $2.60 is money he saves each week
ii( iii) $5.20 to spend on comics and sweets.
You need more info to determine how he spends his money thereafter.
Lets say x = sweets and y = comics.
and lets say he spends under 1/3 on sweets
2(1 1/5x + 1 1/2y) = xy
2 2/5x + 3y = xy
xy = 5 2/5
Step-by-step explanation:
i) 7.80 /3 = 2.60 = $2.60
ii) 7.80-2.6 = 5.20 = $5.20
iii) algebra example or refer to question for more info not shown.
