There are 5 green, 4 orange, 7 purple and 4 blue gumballs in a gumball machine. If the probability of getting a purple gumball is the same in another machine that contains 300 gumballs how many are purple?

please I'm crying over this question :((( help. I'll mark brainiest.

Mrs. avila is buying a wallpaper border to go on all of her kitchen walls. she wants to buy 5 extra feet of wallpaper border than she needs to be sure she has enough. she buys 55.5 feet of the border. the store owner selling the border uses the width of mrs. avila's kitchen to determine that the length of her kitchen must be 14.5 feet.