Answer:
5+6+7+8+9+10+11
Step-by-step explanation:
The initial value is 5 miles
We add 1 mile each day
a1 =5
a2 = 5+1 =6
a3 = 6+1=7
a4 =7+1 = 8
a5= 8+1 =9
a6= 9+1=10
a7 = 10+1 = 11
The series is the sum of the seven terms
a1+a2+a3+a4+a5+a6+a7
5+6+7+8+9+10+11
