Please help me please I really need help.

At the newest animated movie, for every 9 children, there are 4 adults. there are a total of 39 children and adults at the movie.

On saturday a souvenir shop had 125 customers.sixty four percent of the costumers paid with a credit card. how many costumers paid with cash?

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers