45 - 7 = 38
unknown quantity is the miles already traveled.
Answer:
gcf, hcf, lcd (308; 420) = 28 = 2^2 × 7: greatest (highest) common factor (divisor), calculated. The numbers have common prime factors.
Step-by-step explanation:
use a calculator to help
im not 100% sure if my answers are right but heres what i got:
b. 3 and 1/2
d. 2 and 1/3 (or 2 3/9)