7/2x + 1/2x = 12+1/2+9/2x

I need to figure out what x is equal too...and by the 12+1/2 i mean twelve and one half

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line?

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?

If your teacher tells you to do questions 6 through 19 in your math book for homework, how many questions is that