Daniel buys 17 raffel ticket a total of 280 tickets were soldFind the probability that daniel does not win

Mary used 1/7 of a spool of ribbon to complete 4 projects. she used the same amount of ribbon on each project. how much ribbon did she use on each project?

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

A50% increase followed by 33 1/2% decrease