Answer:
8.4 inches/second
Step-by-step explanation:
1 yd = 3 ft
1 ft = 12 inches
1 minute = 60 seconds
These are the conversion factors we need to convert 14 yds /minutes to inches per second
14 yds 3 ft
-------- * -------------
minutes yd
The yds cancel and we are left with
42 ft
--------
minutes
42 ft 12 inches
-------- * ------------------
minutes 1 ft
The feet cancel
504 inches
-------------------
minutes
504 inches 1 minute
------------------- *--------------
minutes 60 seconds
The minutes cancel
504 inches
------------------
60 seconds
Simplifying the numbers
8.4 inches
----------------
second
