Answer:

Step-by-step explanation:
we know that
The volume of a cylinder is equal to

we have
----> the radius is half the diameter
substitute the values

Answer:
B.
Step-by-step explanation:
We can use a graphing calc to determine which line is the correct one.
X=67/2
y=-67/3
x and y intercepts
Answer:
19
Step-by-step explanation:
9+10=19
Answer:
-65
Step-by-step explanation:
-80 - -15
Two minuses become plus
= -80+15
Subtract and keep the sign of the higher number
= -(80-15)
= -65