Answer:
6 1/ 8
Step-by-step explanation:
Answer:
500m
Step-by-step explanation:
a rectangle has 4 sides, so 30=60 and 20=40
60x5=300
40x5=200
300+200=500
500m
reason of 500
The main reason for this is he ran AROUND the rectangle and did it 5 TIMES, doing it once would be 100m.
Answer:

Step-by-step explanation:
<u>Step 1:-</u>
Given equation is
.....(1)
Given the given function y=x
by using formula 
Differentiating partially with respective to 'u'

<u>Final answer </u>:-

All you have to do is divide 321 by 3 to get $107.00 each night