The correct answer is Choice A.
Construct an equation based on the two different writing speeds of Sarah.
Choice B is incorrect because the speeds and the minutes have been switched between typing and handwriting.
Choice C is incorrect because the speed should be multiplied with the corresponding time instead of being divided by the rates.
Choice D is incorrect because it includes the time it takes to write one word.
✨ Expert's Tip ✨
It would be a mistake to add the hourly rates together since the number of hours spent writing in hand and typing can be, and probably will be, different.