Hi!
1.)
a:A u B=

(The same elements are written once.)
b:A u C

c:B u C

Note:I used dots to mean commas .
Good work!
That would be 156%. have a great day
Answer:
47/100
Step-by-step explanation:
47 = 0.47 = 47/100
Answer:
Average velocity is 32 miles/hr.
Step-by-step explanation:
Given that a particle moves on a line away from its initial position so that after t hours it is
miles from its initial position.
We have to find the average velocity of the particle over the interval [1, 4].
As, average velocity is the change is position over the change in time.


∴ 
=
Hence, average velocity is 32 miles/hr.
14. 75 105
105 75
16. 155 25
155
17. 127
18. 55 125 125
19. 115 140 40