Final answer:
The correct expression for the final price after a 30% markup on the wholesale price x is (1+0.30)x, which is option C.
Step-by-step explanation:
The expression that represents the final price of a computer that costs x dollars wholesale and is marked up 30% at a store is given by C. (1+0.30)x. To calculate the final price, you need to multiply the original price x by 1 (which is the original price itself) plus the markup percentage (30% as a decimal is 0.30). Therefore, the markup is 0.30 times x, and when this is added to the original price x, it gives us (1.00 + 0.30)x or 1.30x, which is the correct final price for the computer.
The expression that represents the final price of the computer after a 30% markup is option C. (1+0.30)x.
To calculate the final price, you need to add the 30% markup to the wholesale price (x). In mathematical terms, a 30% markup is equivalent to adding 0.30 times the wholesale price (x) to the wholesale price. This can be represented as (1+0.30)x.
For example, if the wholesale price is $100, the final price with a 30% markup would be (1+0.30)(100) = 1.30 * 100 = $130.