Answer:
Find the unit rate;
_____________ = _____________
We multiply those 57.5 calories with 6 ounces
57.5(6) = 345, there are 345 calories in 6 ounces.
(note that you formatted the question wrong, it was supposed to be):
There are 230 calories in 4 ounces of a type of ice cream, how many calories are in 6 ounces of that ice cream?