Answer: A reasonable estimate of the minimum is 20.
Answer:
a) 
b) what?
c) -70
Step-by-step explanation:
If you have any questions feel free to ask in the comments - Mark
sorry for the terrible answer
Answer:
128 students in total
Step-by-step explanation:
25/100 = 1/4
1/4 = 32/ x
1 x 32
90% x 18 = 16.2
Therefore, you answered about 16 questions correctly out of 18.