Give the step-by-step reasoning process and then the final answer. Fabian bought a brand new computer mouse and keyboard to be able to work from home. The cost of the keyboard was three times greater than the cost of the mouse. If the mouse cost $16, how much did Fabian spent on his new accessories?
The cost of the keyboard was 3 * $16 = $48. That means Fabian had to pay $48 + $16 = $64 in total for his accessories.
The final answer: 64.