Answer:
.
Step-by-step explanation:
Given : Dominic goes jogging every morning.
To Find: If m represents the number of miles he jogs each day, which expression represents the total number of miles he jogs in a week?
Solution:
Let m be the miles he jogs each day
No. of days in a week = 7
He jogs in 1 day = m miles
So, he jogs in 7 days = 
Let t denotes the total number of miles he jogs in a week
So, he jogs in 7 days= 
Hence the expression represents the total number of miles he jogs in a week is
.