The graph shows the earnings that Winnie's bookstore made from July to November
- What was the total earnings from July to November?
- How much money must be earned in December to have average earnings of $4400 from July to December?
(a)
Total earnings from July to November
= 2000 + 4000 + 2800 + 2600 + 3600
= $15000
(b)
Total earnings from July to November
= 6 x 4400
= $26400
Amount that must be earned in December
= 26400 - 15000
= $11400
Answer(s): (a) $15000; (b) $11400