10 minutes I don’t know id this is right
Its like a shoter way or writing "to the power" I think.
The car has a 12 mile head start, going 80 mph, so his distance is:dcar=80∗t+12
The is going at 108 mph, so his distance is:dcop=108t
Setting them equal to each other we get:80t+12=108t⇒12=28t⇒t=1228=37
So 3/7 of an hour.about 25.7 mins.
Answer:
Y_1 = 1.195 m = 119.5 cm
Explanation:
For nth order bright fringe, the distance from the center of the pattern is given by :-

Where,
n = order of nth bright fringe. = 1
wavelength of given light = 
D = distance between the screen and slits. = 3.4 m
and d = separation between the slits. 

Y_1 = 1.195 m = 119.5 cm
A tissue donor is what you're probably looking for. :)