Answer:
D
Step-by-step explanation:
The function will be zero when the numerator is equal to 0. So, set the numerator equal to 0 and solve:

I will use the quadratic formula:

Therefore, x = 9 is a 0. Let's check with subtracted root now:

It appears 0 is also a root.
Therefore, the answer is D.
Answer:
B
Step-by-step explanation:
Answer:
57.14
Step-by-step explanation:
12/21 = ?/100
12 time 100=1200
1200 divided by 21 = 57.14
Answer:
35% of 80 is 28.
Step-by-step explanation: