##d = 1.49 xx 10^11 m##
Velocity is defined as the rate of travel and can be found using the distance formula.
##velocity = distance/time##
Rearranging this formula we can solve for distance given velocity and time of travel.
##d = vt##
We are given velocity and time and so can solve for distance but if we plug in the values given;
##d= (3.00 xx 10^8 m/s)(8.3minutes)##
We can see that the units do not match up. Since seconds are the SI unit for time we will need to convert 8.3 minutes to seconds.
##t = (8.3 minutes)(60 seconds/minute)=(498 s)##
Now our units work out and we can solve for distance.
##d = (3.00 xx 10^8 m/s)(498 s)##
##d = 1.49 xx 10^11 m##