HELP ASAPP!!!

tia sold 14 bracelets on monday,27 bracelets on tuesday, and 45 bracelets on friday, if she had 73 bracelets left to sell how many did she start with?

a box of candy had 4 cherry pieces for every 9 lemon pieces if the box had 45 lemon pieces how many cherry pieces would there be?

the ratio of boys to girls in the sixth grade is 2:3, if there are 24 boys how many girls are there?

the bill from hickory tavern was 45.50, we wanted to give a tip of 20% to our waiter, how much did the waiter receive as a tip?
Remember, money is goes to the nearest CENT (hundredths place).