50% off 3.18 and the customer gives you 5.00 how much do u get back

Fifty percent of $3.18 is $1.59. To be able to determine the amount that is received back after paying the amount using a $5 is calculated by subtracting 1.59 from 5. The operation will give us the answer to this item which is $3.41.

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