Answer: b) multiply row 1 by -3 and add the result to row 2
Step-by-step explanation:
Answer:
I'm pretty sure it is A
Step-by-step explanation:
Answer:
3/4 written as a percent would be 75%

check your calculator for the [!] factorial button.
also bear in mind that most calculators also have an [ₙPᵣ] button, to get Permuations, and you can just use that.