Answer:
81.5
Step-by-step explanation:
first arrange the numbers
25,40,68,70,78,85,85,95,98,100
N= 10
median= (n+1)/2
=11/2
=5.5
the average between 5th position and 6th
which is 78 and 85
=(78+85)/2
=81.5
The equation is: 1/2h - 2 = 17
The total length of Josh's hike is: 38 km
1/2h - 2 = 17
1/2h = 19
h = 38
Answer:


Step-by-step explanation:
Given
See attachment for grid
Required
Find c and d
From the attachment, we have:
--- Point on A
--- Corresponding point on B
When A is reflected across the x-axis, the rule is:

So, we have:

Next, is to calculate the translation from
to 
This is calculated using:

and

So, we have:


---- i.e. Shift by 6 units to the left


--- i.e. Shift by 1 unit down