Question

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

Answer 1

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.

Answer 2

Its C and D because

$(1g \div 42miles) = (.5g \div 21miles)$

and D also has the same ratio