11. Water flows from a tank with a rectangular base measuring 80 cm by 70 cm into a tank with a square base of side 60 cm. If the water in the first tank is 45 cm deep, how
deep will it be in the second tank?​

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