Answer:
Around 82-81% aren't yellow.
Step-by-step explanation:
Add together the number of marbles that aren't yellow and divide the total of <u>NON YELLOW</u> with the total (32) to get around 82-81%.
$130
To find the tip you have to change the percent into a fraction first. Since percent is out of a 100, 25% is 25/100 or 1/4. Multiplying 1/4 by 520 you get 130, which is how much the coach will tip.