A merchant imported a batch of 80 porcelain vases for $4,800. Upon receiving the batch, he found 5 voses to be broken and threw them away. He sold 4/5 of the remaining vases at a profit of 40% and the rest at a loss of 10% on his cost price based on the 80 vases. Find his overall profit or loss as a percentage of his cost price based on the 80 vases.

Find the slope of the line that contains the following points. r(-2, 4), s(6, -2)

Ihave trouble finding the nth term of a linear sequence

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