A hotdog and a can of coke costs R29,75. Abu paid R228,55 for 12 hotdogs and 5 cans of coke. How much will Abu pay for 2 hotdogs and 4 cans of coke

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post

Ineed on quadratic equations to solve problems