On a 20-item practice test, how many questions must you answer correctly for a score of 80% correct?

16 questions

Step-by-step explanation

Given Total number of questions is 20

To score 80% a number of x questions needed to be answered

Hence x=(80/100)*20

X=0.8*20

X=16 questions

answer

a,b, and d

explanation

a reflection angle is more than

but less than;

an angle that measures

is a reflex angle.(true)

an angle that measures less than

is acute.(true)

provided we are considering angles greater or equal to zero.

an acute angle lies in the range.

an obtuse angle is less than 180° but more than 90°

an angle that measures 300° is obtuse (false)

an angle that measures 65° is an acute angle.(true)