Miriam has a bamboo plant that is 20 centimeters tall. the plant grows at a rate of 2 centimeters a week. which recursive formula gives the plant’s height at any week in the future? next = 20 × now + 12, starting at 12 next = now + 2, starting at 20 next = now + 20, starting at 2 next = now + 20, starting at 12 next = 12 × now + 20, starting at 20