Question

HELP ME!! SHOW YOUR WORK!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

80/100x20 = 16 that is the answer

Answer 2

To simplify that question, you would normally say "20 is 80 percent of what number" 
To find the answer you must grab the number 20 and divide it by 80% or 0.8
20 ÷ 80% = 25
20 ÷ 0.8 = 25
There are 25 questions on the exam