Answer: old selling price = $170 new selling price = $159.12
Explanation: Part (a) getting old selling price: The equation to get the selling price is given as follows: selling price = original cost + markup value
We are given that: original cost = $136 markup value = 25% = 25% * 136 = 0.25 * 136 = $34
Substitute in the equation to get the old selling price as follows: old selling price = 136 + 34 = $170
Part (b): getting the new selling price: The equation to get the selling price is given as follows: selling price = original cost + markup value
We are given that: original cost = $136 markup value = 17% = 17% * 136 = 0.17 * 136 = $23.12
Substitute in the equation to get the old selling price as follows: old selling price = 136 + 23.12 = $159.12
If you take 136 and multiply it by 1.25, which includes the 25 percent markup you get $170 for the old price. Then if you take 136 and multiply it by 1.17, which includes the 17 percent markup, you get $159.12. so the answer is; C. old price was $170; new price is $159.12