F˟˚R˟˚E˟˚E˟˚ P˟˚O˟˚I˟˚N˟˚T˟˚S˟˚ ˟˚H˟˚A˟˚V˟˚E˟˚ A˟˚N˟˚ A˟˚M˟˚A˟˚Z˟˚I˟˚N˟˚G˟˚ D˟˚A˟˚T˟˚/˟˚K˟˚N˟˚I˟˚G˟˚H˟˚T˟˚

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

Use a calculator basically