Answer:
See explanation
Step-by-step explanation:
Dinosaur Discovery show = 8 friends
Wild Weather show = 4 friends
Cost of Dinosaur Discovery show = $d
Cost of Wild Weather show = $w
At regular price:
Total cost of his friends' tickets = 8 * d + 4 * w
= 8d + 4w
At half price
Total cost of his friends' tickets =
8 * 1/2d + 4 * 1/2w
= 8/2d + 4/2w
= 4d + 2w
Total cost of his friends' tickets = 4d + 2w
The answer should be the first one exponential
The mean deviation of the ratings is 4.12
<em><u>Explanation</u></em>
The ratings of the ten experts are: 34, 35, 41, 28, 26, 29, 32, 36, 38 and 40
So, the mean of all ratings 
<u>The formula for Mean deviation</u>
, where
is the given data from
to
,
is the mean of the data and
is the total number of data. So.....

So, the Mean deviation 
Answer:
4.5 I think
Step-by-step explanation:
The given equation is,

The graph of the function is shown below with the table of values use to plot the graph
Hence, the correct option is Option A.