Part i


Substituting,

Answer: -1
Part ii
I'm not sure that one's typed in correctly but I'll solve it as written.



We're not asked to simplify it so I wont. Substituting,

Answer: 59/306
Answer:
She would eat 3 hot dogs in nine minutes
Answer:
195 inches³
Step-by-step explanation:
Volume = Length * Width * Height
Write as a decimal
2 1/2 = 2.5
Volume = 13 * 6 * 2.5
Volume = 195 inches³
Hope this helps :)
Answer:
7<x<31
Step-by-step explanation:
The third side of any triangle must be more than the difference between the other two sides.
x>19-12
x>7 (or) 7<x
The third side of any triangle must be less than the sum of the other two sides.
x<19+12
x<31 (or) 31>x
Put them together.
7<x<31 (or) 31>x>7