Question

The height of a sunflower plant varies directly with its age. Once it has sprouted from the ground, when a sunflower is 2 week old, it is 38 centimeters tall. When it is 6 weeks old, it is 114 centimeters tall. How tall is a sunflower plant that is 3 1/2 weeks old?

Answer 1

it is 66.5 centimeters tall at 3 1/2 weeks old

Answer 2

i think the answer is 66.5 centimeters