Answer:#9- Answer: -7
#10- Answer: 0
#11- Answer: 4
#12- Answer: -4
Step-by-step explanation:
Answer:
A) 
Step-by-step explanation:


16+36=


The second number of each set is the first number divided by 4
28 and 7. 16 and 4. 1 and .25. 20 and 5. 0 and 0.
The answer C, the product of a constant factor 9 and a 2-term factor x + 7.
The box and whisker plot for the information will be as follows:
<span>79,70,73,84,83,88,75,72,76,68,68,79,84,74,75,85,67,78,69,80
From the table the average is 76.5</span>