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).

Okay so for every triangle has three angles that always add up to 180 degrees. and to tell the difference between whether they are secure, right or obtuse is that acute: has one angle that is less than 90 degrees. right triangle means there is at least one angle that is exactly 90 degrees. and an obtuse angle has an angle that is bigger than 180 degrees. i’ll do #13 as an example: 13. 40 and 50 so if every triangle has 180 degrees 40+50= 90 degrees then180-90= 90 degrees so the third angle is 90 degrees and because this triangle has a 90 degree angle it means it is a right triangle

25% increaseplus i think decrease i only know increase: ((