Answer:
Cant say for sure, its been a while sense ive done this, but im almost certain its 70
Explanation:
Take the zero off of your 10 s
Then go 7 m/s x 1 s
Which equals 7
Add the zero back to the end of your answer
10 -- 0 = 1 x 7 = 7 ++ 0 = 70
(PS, two of the same sign is just adding a number to the end of your original answer, that is not what it actually stands for in mathematical terms but that is what i'm using to make it clearer as to whats happening)
I'm not too good at explaining and formulas but i hope this helped
