Answer:

Step-by-step explanation:
15% of x = 27

15% of 180 is 27.
Answer: 9 pieces
Explanation: Divide 8 by 7/8 to find the number of cut pieces and you'll get 9.
Answer:
x=2
Step-by-step explanation:
Answer: See the description below.
The residuals are the difference between the actual and predicted values. Just subtract those values and plot the point.
Your points will be:
(2, 0)
(3, 4)
(4, -5)
(6, -1)
(7, 2)
(a + 2b) • (a2 - 2ab - 4b2)