There are 12 inches in 1 foot and 5,280 feet in 1 mile. is elena ran 2-1/2 miles how many inches is that ?

Elena ran 158400 inches

Step-by-step explanation:

1 mile= 5280 feet

2.5 miles= 2.5×5280 feet

              = 13200 feet

Also, 1 foot= 12 inches

13200 foot= 12×13200 inches

                 = 158400 inches

Hence, Elena ran 158400 inches

perimeter = 10 +  √10  units

explanation:

first, we will need to get the length of each line using the distance formula which is as follows:

distance = 

1- length of ab:

ab =   = 5 units

2- length of ac

length of ac is the same as ab = 5 units

3- length of bc:

bc =   =  √10  units

now, we can get the perimeter by adding the side lengths as follows:

perimeter = 5 + 5 +  √10

perimeter = 10 +  √10  units

hope this : )

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