12) -
12) a recent survey of gasoline prices indicated that the national average was $4.098 per
gallon. the dallas automobile club claimed that gasoline in texas was significantly
lower than the national average. a survey covering 10 different suburbs in dallas
found the average price of gasoline to be $3.924 per gallon with a population standard
deviation of $0.053. what critical value should be used to test the claim using
a= 0.01?
a) -2.33
b) 1.26
c) 2.33
d) -1.26

answer: the price of one pound cabbage = $ 0.8

the point (10,8) represents that the cost of 10 pounds cabbage is $ 8

step-by-step explanation:

since, here is a proportional relation between the number of pounds of cabbage (x) and the price in dollars (y).

therefore, we can write,

⇒ y = k x

where k is the constant of proportionality.

now, point (5,4) is in the line.

thus, it will satisfies the above equation of line.

⇒ 4 = 5 k

⇒ k = 0.8

thus, the equation of the line is,

y = 0.8 x

a) for x = 1,

y = 0.8

therefore, the cost of one pound of cabbage is 0.8 dollars.

b) in the below graph (10,8) represents that the cost of 10 pounds of cabbage is 8 dollars.

ratio is 2 : 9

the answer is three

13.5 : 3

believe it or not anna is correct good job anna give me a fist bump there u go gal

i dont know the answer but here's a picture of a dog