Answer:
15
Step-by-step explanation:
Using the distance formula
Answer:

mass = 3.645 g
volume = 9×9×9
= 729 cm³
density = 3.645/729
= 0.005 gcm^-3
Step-by-step explanation:
the volume is 729 cm³ cause the given height is 9cm and it is a cube. cube has equal sides so their lengths are the same.
volume = length × height × width
1. 2r-5
2. -21r-50
3. 4r-50
4. 14r+50
5. 19r-50
This is what the graph would look like. Hope this helps:)