The answer is 70 steps, because you walked 30 steps from the front to the store then you walk to the left of the store, you now can add these together to make 70 steps altogethor! how this helps!
To find the percentage out of a fraction you would divide 4÷5 to get 0.8, the decimal answer, then to turn that to a percent you would move the point two places to the right to get 80%.
