a.
If 1 gal = 3.79L
then x gallons = (8 ÷ 3.79)
x is approximately 2.11 gallons
b.
If 1mi = 1.61km
then x miles = (75.3 ÷ 1.61)
x is approximately 46.77 miles
c.
If 1mi = 1.61km and 1km = 1000m, it implies that 1mi = (1.61 × 1000)meters
this is equal to 1610meters
since 1mi = 1610m, x meters = (38.1 × 1610)
x is 61341 meters.