For this case we have the following equation:
d = v * t
Where,
d: distance
v: speed
t: time
the equation for lisa is:
d = (100/18) * t
The table is:
1 5.555555556
2 11.11111111
3 16.66666667
4 22.22222222
5 27.77777778
6 33.33333333
7 38.88888889
8 44.44444444
9 50
10 55.55555556
11 61.11111111
12 66.66666667
13 72.22222222
14 77.77777778
15 83.33333333
16 88.88888889
17 94.44444444
18 100
For t = 12 we see in the table that the distance is 66.66.
Therefore, to reach tim we have:
d = 100-66.66
d = 33.34
Answer:
it will take lisa 33.34 yd to reach tim in 12 sec