Answer:
$3.50 if they all equal the same amount.
Step-by-step explanation:
If six comic books are bought with $21, and we assume they are all the same amount of money, we would simply divide our cost ($21) by our quantity (6).
21/6 = 3.5
Therefore, the cost of one comic book equals $3.50.
If the prices are multiples of 2, then (excluding $0 or free), then the possible prices are such that they add up to $10.
Possible prices are
(2,8),(4,6)
or
$2 and $8, or
$4,$6.
There should be 45 pages for each topic
Jo's Mobile Plan:
Fixed monthly charge = £16
Monthly 150 free minutes, post that 13p (or £0.13) per minute,
Monthly 150 free texts, post that 15p (or £0.15) per text
Jo's mobile phone usage details:
170 minutes of calls
182 texts
Total Charges for Jo = Fixed Monthly Charge + Charges for Calls + Charges for Texts
⇒ Total Charges for Jo = 16 + (170-150) × 0.13 + (182-150) × 0.15
⇒ Total Charges for Jo = 16 + (20) × 0.13 + (32) × 0.15
⇒ Total Charges for Jo = 16 + 2.6 + 4.8
⇒ Total Charges for Jo = 23.4
Hence, Jo should be charged £23.4 for the month.
Hope this helps !
