Question

I need help ! On the question i reslly do not get it !

Answer 1

its C and D because


`(1g / 42miles) = (.5g / 21miles)`

and D also has the same ratio

Answer 2

This question is basically a ratio 1 : 42

so then it would be 2 : 84 then 3 : 126

So your answer is D 3 Gallons for 126 miles.