Solve using substitution

X+y=9
Y=2x-6

Show work plz

You have $600,000 saved for retirement. your account earns 5.5% interest. how much, to the nearest dollar, will you be able to pull out each month, if you want to be able to take withdrawals for 20 years?

Michael is training for a marathon. in his first week he plans to run 8miles. what path should he take

Aadc is formed by reflecting aabc across line segment ac, as shown in the figure. if the length of ac is 4 units, the area of aadc is square units.