30
solve for u, where u is a real number. square root of u+7=9 if there is more than one solution, separate them with commas.
if there is no solution, click on "no solution".

i just need to know if i am right. i got u= square root of 2 and it could be both + or -

You are choosing between two health clubs. club a offers membership for a fee of $ 28 plus a monthly fee of $ 20. club b offers membership for a fee of $ 20 plus a monthly fee of $ 22. after how many months will the total cost of each health club be the same? what will be the total cost for each club? in __ months the total cost of each health club will be the same.