Question
Ivory and Zoe went shopping. After Ivory spent $63r, Zoe had 3 times as much as Ivory. If Ivory had $21r more than Zoe at first,
  1. Express the amount of money that Ivory had at first in terms of r.
  2. If r = 23, find the amount of money that the two lady had left after shopping.
3 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

Ivory and Zoe went shopping. After Ivory spent $63r, Zoe had 3 times as much as Ivory. If Ivory had $21r more than Zoe at first,
  1. Express the amount of money that Ivory had at first in terms of r.
  2. If r = 23, find the amount of money that the two lady had left after shopping.