4/18 of the 315 members of a book club are male. how many female members are there in the club?

These question are hard can you me with answers

If myesha works overtime, she gets paid "time and a half" for every hour she works. in other words, for every hour over 40 hours myesha works each week, she gets her hourly pay plus half her hourly pay. what is myesha's pay per hour when she works overtime?

Sara made $253 for 11 hours of work. at the same rate how much would he make for 7 hours of work?