Answer:
C) 7.54
Step-by-step explanation:
first, line up the decimal point, which has been done properly. now, add as though the decimal point doesn't exist, just add normally. you get 754. now, you slide the decimal point down, there are 2 places after the decimal (we assume that 6.8 is 6.80, doesn't change anything), so that's how many will be there in the answer. therefore, 7.54.
