Answer:
14 right answers and 6 wrong answers
Explanation:
To get a 70% you have to get 14 questions right and 6 wrong
This means that Alex answered 14 questions correctly
Step 1: Find an equation
20 * 0.7 = x
Step 2: Multiply
14 = x
Answer: This means that Alex answered 14 questions correctly
4.8m questions
6.2m answers