If you got out to eat with 3 friends and your meal was 72.50, there is a 6.75% sales tax and you should tip the waiter 15% how much should each person pay?

The weight of an object in the water is 7% of its weight out of the water. what is the weight of a 652g object in the water?

The average length of a king cobra is 3.7 m. the record length is 1.88 m longer than the average. how long is the record holder?

Why can't my rank go i have 1723 points, but my rank is only at ambitious, which is only 250 points! like, (p. s. i know this isn't related to math, but i just don't know why it's doing this and i would really appreciate if someone could tell me whats going on with this)