Hi I need help please on math: Evaluate this table.

X 5 10 15 25 40
Y 1 2 3 5 8
The table represents a(n) * blank* relationship.

options:

1.additive
2.multiplicative

Will give brainliest summations with algebraic expressions image shown

Issof claims that the scale factor is 1/2. which statement about his claim is correct

Three cylinders have a volume of 2836 cm^3. cylinder a has a height of 900 cm. cylinder b has a height of 225 cm. cylinder c has a height of 100 cm. find the radius of each cylinder. use 3.14 as an approximate for π