1. Guna has x 2-dollar notes and y 5-dollar notes. The total
value of the notes is $100
Form an equation connecting x and y . 2x + 5y = 100
If Guna has at most 20 2-dollar notes, use the equation
in (i), find the possible number of 5-dollar notes
How do I present my answer?
2. For interests and stuff
If I am buying something inclusive of 5% GST and the thing costs
$750
so 105% -> 750 ? (just an example)