Answer:10
Step-by-step explanation: If you see that the vocabulary questions is 20 percent of the total number of questions which is 50, then you multiply 20/100 with 50 which is 1/5 of 50 which is 10 questions. Hope this helps
A and E.
x= (1+ root-71)/6 and x= (1-root-71)/6
Obtuse angle. If wrong I’m sorry lol
