Answer:
The correct option is d
Step-by-step explanation:
From the question we are told that
The sample size is n = 64
The mean is 
The standard deviation is 
Generally the standard error of the mean is mathematically represented as
=> 
=> 
Answer:
it's a) the variable y represents the pounds of cookies sold in the $63 purchase
hope it helps;)
825
1,800/120 = 15
55 x 15 = 825
Original price = (sale price*100):(100-percent of discount)
(55.5*100):(100-75)= 5550:25=222 $
(x+4)^2 / 9 - (y+3)^2 / 16 = 1
a^2 = 16 and b^2 = 9
a = +4 and -4
b = +3 and -3
Center is (-4, -3)
Vertices is (-4 + a, -3) and (-4 - a, -3)
Vertices is (-1, -3) and (-7, -3)
