Question

A rectangle has a width of 9 km and a length of 6 km. How does the area change when each dimension is multiplied by 3?
A)The area is increased by a factor of 3.
B)The area is increased by a factor of 6.
C)The area is increased by a factor of 9.
D)The area is increased by a factor of 18.

Answer 1

Answer: C

Step-by-step explanation:

Proof in picture.

Answer 2

Answer:

C) The area is increased by a factor of 9.

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