The graph shows the earnings that Barbara's shop 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 $4100 from July to December?
(a)
Total earnings from July to November
= 2400 + 4000 + 4000 + 2800 + 2400
= $15600
(b)
Total earnings from July to November
= 6 x 4100
= $24600
Amount that must be earned in December
= 24600 - 15600
= $9000
Answer(s): (a) $15600; (b) $9000