Help a gal out yal! 1.) Which of thr following equations is noy a linear equation?

A.) x-4y=-1
B.) x=2
C.) y=x-1/2
D.) x 2=5y

2.) Which of the following points lies on the graph of this equation?

2y=x+3

A.) (0,3)
B.) (2,5)
C.) (-1,2)
D.) (1,2)

3.) Fin the value of y that makes the equation 3y = x + 2 true, when x=1.

A.) 1
B.) 3
C.) 1/3
D.) 2

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables