Helene drove 70 km on 4 l of gasoline. which proportion would determine how far she can travel on a full 30 l tank of gasoline

70/4=30/x

70/30=x/4

70/4=x/30

30/70=4/x

answer: give more info

step-by-step explanation:

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.