Andre went hiking near his house.the first trail he hiked on took him 4.5 miles away from his house. the second trail he hiked took him 2.4 miles closer to his house.the thrid trail took him 1.7 miles further away from his house.after andre hiked the three trails,how far from his house was he?

He is 3.8 miles away from his house.

Explanation :

Distance the first trail took him away = (+) 4.5 miles

( We will show it with positive sign as it increase the distance away from the house)

Distance the second trail took him closer = (-) 2.4 miles

(We will show it with negative sign as it decreases the distance)

Distance the third trail took him far away = (+) 1.7 miles

Now , total distance = 4.5-2.4+1.7

                                  = 3.8 miles

∴  He is 3.8  miles far his house.

69a+6

Step-by-step explanation:

Distribute the 6 over the (10a+1) then you get 60a+6. Add the 9a to the 60 giving u 69a then you have the 6 left over making the answer 69a+6