A plant is already 47 centimeters tall, and it will grow one centimeter every month.
Let H be the plant's height (in centimeters) after M months.
Write an equation relating H to M. Then use this equation to find the plant's height after 21 months.

Respuesta :

Answer:  47cm + ( H*M)

47cm+ (1H * 21M)=  68 cm