Answer:
32, 40, 48, 56
Step-by-step explanation:

Answer:

Step-by-step explanation:
-Given that 
-We determine the z-value corresponding to the 95% confidence level:

-The margin of error is the degree of error from the real value and is calculated as follows:

Hence, the margin of error is 
Y=10x+20
10x because the price is $10 a class
+20 because it costs $20 for the monthly subscription
W+D=659
W=D-91
---------------------------
(D-91)+D=659
D-91+D=659
2D=750
D=750/2=375
------------------------------
W+375=659
W=284
------------------------------
So the dryer had cost $375 and the washer had cost $284.
Answer:
C. Wave-like and repetitive
Step-by-step explanation:
I calculated it logically