The heights of three flower pots are 45cm 30cm and 10cm.
write the ratio of their heights in ratio form

Can someone check my answer? you

65 8 7 4 5 6 8 4 3 2 1 9 5 6 4 2 1 6 5 1 5 1 3 2 3 5 multiply the third number in the first row by the seventh number in the third row. add this result to the fifth number in the second row. add to this total ten times the fourth number in the third row. subtract the eighth number in the first row from the result.

Need on this geometry question. explain how you did it.