Plz help me asap. highly apprecated. first done and right gets brainliest

Ican't do any of the other stuff, but i can get you started. the answer, i believe, is $2.50.

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

Idon’t know what the answer is i wish i could