Answer:

Step-by-step explanation:
The question is to factorize 
<em>What is common from all 3 terms?</em> It is the factor 4, so we take out 4 and write the remaining as "factorized form".
(Work shown below):

<u>First answer choice is right.</u>
I will show you a way to do 1 and then you pratice with the rest and I'll check it and help you .
This is what I would do to make it easier
1. 7:15 to 11:16 then 12:05 to 6:10
- hours are on the left side-
1 - 7:15 to 8:15
2- 8:15 to 9: 15
3 - 9:15 to 10:15
4 - 10:15 to 11:15
16 - 15 = 1
4 hours and 1 minute
worked :12:05 - 6:10
1- 12:05 to 1:05
2- 1:05 to 2:05
3- 2:05 to 3:05
4 - 3:05 to 4:05
5- 4:05 to 5:05
6- 5:05 to 6:05
10 - 5 = 5
6 hours and 5 mins
4 + 6 = 10 hours
1 + 5 = 6 mins
10 hours and 6 minutes
Answer:
Median: 11
Range: 12
25th percentile: 9
75th percentile: 14
Interquartile range: 5
Step-by-step explanation:
✔️Median = the value that lies at the point where the vertical line divides the box into two = 11
✔️Range = max value - min value = 19 - 7 = 12
✔️25th percentile = Q1 = the value at the beginning of the edge of the rectangular box = 9
✔️75th percentile = Q3 = the value at the end of the edge of the box = 14
✔️ Interquartile range = Q3 - Q1 = 14 - 9 = 5
9 × 13<em>ˣ</em> = 9 × exp(ln(13<em>ˣ </em>))
… = 9 × exp(<em>x</em> ln(13))
… = <em>A</em>₀ × exp(<em>kx</em>)
so that
<em>A</em>₀ = 9
<em>k</em> = ln(13)