Melonie is 3 times older than her cousin their total of there ages are 36 how old is melonies cousin

You are a clerk at convenience store. a customer owes 11.69 for a bag of potatoes chips. she gives you a five dollar bill. how much change should the customer receive?

Ill mark the brainliest if you me with the these three questions 7,8,9

Aladder that is 20ft long is leaning against the side of a building. if the angle formed between the ladder and the ground is 75 degrees how far is the bottom of the from the base of the building?