4/ 2 * 4 - 1 = -0.5 use parenthases

(4 / (2 * 4)) - 1

Step-by-step explanation:

(4 / (2 * 4)) - 1

4 / 8 - 1

0.5 - 1

This does in fact equal to -0.5.

So the parenthesis are around 2 * 4.

answer: 4 meters

step-by-step explanation: to you understand 2/3 better you can do 1 divided by 3 = . then multiply that by the 2 which is .66666666666666667 then you would do 6 x .66666666666666667 which is 4.      

hope this .