5 hours because 20 divided by 4 is 5. 20 being the total hours.
<h2>Hey Mate, Your Answer Is Here</h2>
Answer:
C Rectangle
Answer:
4
Step-by-step explanation:
Answer:
D m = 
Step-by-step explanation:
factor the expressions in the denominator and the numerator to simplify the expression:
=> 
=> 
to make a fraction undefined, the numerator should be 0, thus, we substitute the values of m from the options into the denominator to make the denominator equals to 0:
=>
=
= 
in this case, the values of m from option D make the denominator of the fraction equals 0.