Question

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Answer 1

Convert feet to inches:

9 ft (12 in/ft) = 108 in

R(car/model) = 108/10 = 10.8 to 1

Answer 2

9 ft is 108 in.
the model is 10 in
never mind britneyspears got it right.

Answer 3

If you don't want a decimal in the ratio 54/5

Answer 4

5:54 then?

Answer 5

Just reduce the 108/10 to 54 to 5

Answer 6

Thank you. You solved the answer more to an extent for me, but you are already 99, so i'll give the medal to britneyspears

Answer 7

I should point out that britneyspears solution was just as right as the 54 to 5
and be sure you have the correct order, it is asking the ration of the car to the model, not the model to the car. Note the difference.