(p l e a s e be quick)

in a large apartment building, 35 of the apartments have a balcony and 55 do not. an apartment is randomly selected as part of a survey. what is the probability it has a balcony? enter your answer to the nearest percent.

Initially 100 milligrams of a radioactive substance was present. after 6 hours the mass had decreased by 4%. if the rate of decay is proportional to the amount of the substance present at time t, find the amount remaining after 24 hours. (round your answer to one decimal place.)

James wants to promote his band on the internet. site a offers website hosting for $4.95 per month with a $49.95 startup fee. site b offers website hosting for $9.95 per month with no startup fee. for how many months would james need to keep the website for site a to be a better choice than site b? will mark the

The ratio of men to women working for a company is 4 to 5 . if there are 90 women working for the company, what is the total number of employees?