Ijust need an explanation for both of these, !

See below.

Step-by-step explanation:

There are ten 'steps' over the dashes from 0 to 0.3 so he will walk another ten 'steps' to reach 0.6 miles.

So this will be at the beginning of the 20th dash.

1/2  a foot  has 4 dashes in between the beginning and the end of 1111/2 ft.

3 / 1/2 = 6 so the mark will be at the end  of the 4*6 = 24th dash.

do you mean add both of the equations together

because if you do the answer is 10x-5

step-by-step explanation:

if you explain the the question more correctly i might be able to answer this better

step-by-step explanation: