A photograph measures 12 centimetres by 20 centimetres. A printing company enlarges the photo. The length of the enlarged photo is 60 centimetres. What could he other dimension of the enlarged photo be?

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