The reasons that the sample is representative:
The builders were chosen at random
The population included only builders who build in Vicki's town
Vickie wanted to determine the cost of building a house in her home, so the fact that the builders were from her town makes the sample more representative. Moreover, the random choosing of the builders helps to remove any biases that may be present.
The total distance traveled by Alfred is the sum of the distance he traveled before and after refueling.
The distance he traveled before refueling is 150 miles. After refueling, the distance he traveled is the product of his speed and time, x hours. Therefore, his total distance traveled is,
y = 60x + 150
In term we have to +1 and in number there’s a pattern = 1,2,3, 1,2,3, 1,2,3, 1,2,3....and so on
Hope it helps u understand ask if u have any doubts
22. each sport needs at least two teams so multiply 5x2 and 6x2 then add the numbers. 10+12=22
