Sarah saved $9 in Week 1. She saved $18 in Week 2 and $27 in Week 3. She continued saving in this pattern.
- In which week did she save $90?
- How much would she save in Week 7?
(a)
The week that Sarah saved $90
= 90 ÷ 9
= 10
(b)
Amount that Sarah saved in Week 7
= 7 x 9
= $63
Answer(s): (a) 10; (b) $63