) A camera shop charges $3.99 for an enlargement of
1 answer:
Answer:
Total Cost
Step-by-step explanation:
Given:
Charges for an enlargement of 1 photograph =
Delivery charge per order =
Let number of enlargements of photograph in an order be
We need to find the Total cost C of an order.
So the Total Cost would be equal to Charges for an enlargement of 1 photograph number of enlargements of photograph in an order plus Delivery charge per order.
Total Cost per order
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Answer:
Step-by-step explanation:
Total number of toll-free area codes = 6
A complete number will be of the form:
800-abc-defg
Where abcdefg can be any 7 numbers from 0 to 9. This holds true for all the 6 area codes.
Finding the possible toll free numbers for one area code and multiplying that by 6 will give use the total number of toll free numbers for all 6 area codes.
Considering: 800-abc-defg
The first number "a" can take any digit from 0 to 9. So there are 10 possibilities for this place. Similarly, the second number can take any digit from 0 to 9, so there are 10 possibilities for this place as well and same goes for all the 7 numbers.
Since, there are 10 possibilities for each of the 7 places, according to the fundamental principle of counting, the total possible toll free numbers for one area code would be:
Possible toll free numbers for 1 area code = 10 x 10 x 10 x 10 x 10 x 10 x 10 =
Since, there are 6 toll-free are codes in total, the total number of toll-free numbers for all 6 area codes =