A. We are given that they already drove 420 miles and an
additional of 65 miles per hour. Therefore distance covered is:
d = 420 + 65 t
where d is distance and t is time
B. If they drove 8 hours per day for 2 days, then total
time is t = 16 hours, hence:
d = 420 + 65 * 16
d = 1460 miles
