Answer:
122.4
Step-by-step explanation:
Remember PEMDAS
Parentheses
Exponents
Multiply
Divide
Add
Subtract
(52-15+2)=39
39x3=117
117+5.4=122.4
The average mileage covered per day is = number of miles / number of days.
The average mileage covered per day is =(x+y+z)/3
Here's what I got for the first question.
Did you want answers for the second one? I couldn't read that part of the image very well, if you did.