Question
The total mass of Esther, Dana and Nora is 39a kg. Esther has a mass of 4a kg. Dana is 4 kg heavier than Esther.
  1. What is Nora's mass in terms of a?
  2. If a = 12, what is Nora's mass? 
3 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

The total mass of Esther, Dana and Nora is 39a kg. Esther has a mass of 4a kg. Dana is 4 kg heavier than Esther.
  1. What is Nora's mass in terms of a?
  2. If a = 12, what is Nora's mass?