Final answer:
To calculate the final price of the cell phone after a 30% discount, calculate the discount amount ($53.70) by multiplying the original price ($179) by 30%. Then subtract the discount from the original price to get the final price of $125.30.
Step-by-step explanation:
Janna is interested in purchasing a cell phone for her business, and wishes to determine the final price after a 30% sale. Initially, the cell phone is priced at $179. To calculate the discount amount, we multiply the regular price by the discount percentage: $179 * 30/100 = $53.70. This is the amount that will be deducted from the regular price. To find the final price of the phone, subtract the discount from the regular price: $179 - $53.70 = $125.30.
In conclusion, after applying the 30% discount, the final price Janna will pay for the cell phone is $125.30.