Final answer:
To find the sale price, multiply the original price by the discount percentage and subtract the result from the original price.
Step-by-step explanation:
To find the sale price of the camera during the Black Friday sale, we need to apply the 30% discount to the original price of $108. The discount is calculated by multiplying the original price by the decimal equivalent of the discount percentage. 30% is equivalent to 0.30 in decimal form. So, the discount amount is $108 * 0.30 = $32.40. To get the sale price, we subtract the discount amount from the original price: $108 - $32.40 = $75.60.