Answer:
Store C
Step-by-step explanation:
Simply divide the price by the amount to determine which store has the best price efficiency.
A : 12.99 / 100 = .129¢ per oz
B : 9.49 / 70 = .136¢ per oz
C: 10.98 / 90 = .122¢ per oz
Store C has the best price efficiency
D. 9n-11=34
9n=45
n=5
Therefore, D has a solution of 5.
(-4)(-2)= 8
8(-5)= -40
Answer: -40
The median of this data set is $5,150. $2,200+$8,100/2=$5,150. Good luck!