8•(-0.25) would be -2 if that's what you're asking :)
905 is the answer hope it helps
Volume of cylinder =

if height is doubled the volume is doubled
Answer:
s/8 = -8
s = - 64
Step-by-step explanation:
Solution
s/8 - 12 = -20 Add 12 to both sides
s/8 -12+ 12 = -20+ 12 Combine
s/8 = - 8 Multiply both sides by 8
8*s/8 = - 8*8
s = - 64
Let's say we have a parallelogram that has sides of 2 and 3
perimeter = 2 * (side1 + side2)
perimeter = 2 * (2 + 3)
perimeter = 10
If the sides are increased by a factor 4, the sides are 8 and 12
perimeter = 2 * (side1 + side2)
perimeter = 2 * (8 + 12)
perimeter = 40
The perimeter increases by a factor 4.