Answer:
B.
Step-by-step explanation:
12, 4
take the first number together than the last ones and just find the difference
Answer:
16 problems.
Step-by-step explanation:
100% divided by 20 questions.
100/20 is equal to 5, therefore each question is worth 5 points.
Grade of 80% divided by points per question.
80/5 is 16 so the student answered 16 questions correctly.
The answer to this question is