10.4 sweets cost 28p altogether,

how much much do 7 sweets cost

28/10.4=2.69

2.69*7=18.83

So lets make this a simple math question. I don't know if the 10. is the question number or not, but anyway. If its 4 sweets, then its 4x=28 x=7 7p each sweet, 7p*7 total sweets = 49p.

If its 10.4 sweets then its just as simple ...

10.4x=28p x=2.69. 2.69 * 7 sweets = 18.84p