Class D has 28% boys because 50 x 28% (or .28) you get 14
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(46/2)+14 = 37
You basically answered the question yourself.
A.
Juan Increase 25/350 = .071 * 100 = 7 %
Rhia Increase 75/275 = .273 * 100 = 27 %
Max Decrease 40/400 = .1 * 100 = 10 %
b.
Juan sold more than $355 but his increase was less than 10% so he did not get a bonus.
Rhia had an increase more than 10% but she did not sell more than $355 so she did not get a bonus.
Max had a decrease so he did not get a bonus.
Answer:
B.
Step-by-step explanation: