i need help. please

Question

suppose you took an exam in your math class last week. suppose there are 32 people in your math class. according to canvas, the class mean was 74% but you know that there were four people enrolled in the class who didn't take the exam and so they got zeros on it, what would be the class mean be if those four zeros were not included

Answer 1

mean without the 4 who didn't take the test would be 32(74)/(32-4)

= 32(74)/28 = 8(74)/7

= about 84.57