Answer:
Good job they are all right!
Step-by-step explanation:
Y=29
Issheishwsihwsuwh i dont know why 8 have to write 20 charcters
Y = -4x + 3
Because, it has the same slope (-4) as the slope of y = -4x + 8
Answer:
Step-by-step explanation:

hope this helps
Answer:
It will increase by 9 units.
Step-by-step explanation:
We can write the lowest number as 10a + (a + 1) and the highest is the reverse which is 10(a + 1) + a.
Subtracting:
10(a + 1) + a - (10a + a +1)
= 10a + 10 + a - 10a - a - 1
= 10a - 10a + a - a + 10 - 1
= 10 - 1
= 9.