HELP TYSM IF U DO (brainliest if right)

Answer:
estimated difference = 72
actual difference = 72.74
Step-by-step explanation:
Hello There!
First lets find the actual difference
Note: difference is subtraction
79.44-6.7=72.74
so the actual difference is 72.74
now lets find the estimated difference
79.44 rounded to the nearest whole is 79
6.7 rounded to the nearest whole is 7
79-7=72
so the estimated difference is 72