8. The drama club had a car wash as a fundraiser. Members washed x cars at $5
each and y trucks at $8 each. They made
$250. Find the number of each type of
vehicle they washed using the system of
equations:
(x - y = 11
5x + 8y = 250
A 15 cars and 26 trucks
B 22 cars and 33 trucks
C 26 cars and 15 trucks

Astudy found that the variance in the number of vehicles owned or leased by subscribers to a magazine is .094. assume a sample of 12 subscribers to another magazine provided the following data on the number of vehicles owned or leased: 1,1,1,0,3,2,1,1,2,1,0, and 1 a) compute the sample variance in the number of vehicles owned or leased by the subscribers (to 4 decimals). b)test the hypothesis to determine whether the variance in the number of vehicles owned or leased by subscribers of the other magazine differs from .calculate the value of the test statistic (to 3 decimals).