Since this is a 45-45-90 triangle, n = 9 and m = x
8x7x6 = 336. There are 8 possible options for slot 1, then 7 for 2, and 6 for the last slot.
Answer:
7.4 miles per hour
Step-by-step explanation:
To find her speed in miles per hour, divide the amount of miles she ran by the number of hours:
5.55/0.75
= 7.4
So, her speed is 7.4 miles per hour