Brian family drinks a gallon of milk in three days how much gallons of milk will brian family drink in five days

To calculate this, we have to establish a proportion :

If 1 gallon of milk is drunk in 3 days,

X gallons will be drunk in 5 days

X gallons = 1 gallon*5days/3days = 1.66 gallons will drink in 5 days.

We can round to the first decimal place 1.66 ≈ 1.7 gallons approximately.

Answer : 1.7 gallons will Brian family drink in five days, approximately.

Hope this helps!

b.-4 units

all you   do is count how many times you move