1. a normal distribution of scores has a standard deviation of 10. find the z-scores
corresponding to each of the following values:
a) a score that is 20 points above the mean.
b) a score that is 10 points below the mean.
c) a score that is 15 points above the mean
d) a score that is 30 points below the mean.

When drawing a trend line for a series of data on a scatter plot, which of the following is true? a. there should be an equal number of data points on either side of the trend line. b. all the data points should lie on one side of the trend line. c. the trend line should not intersect any data point on the plot. d. the trend line must connect each data point on the plot.

Solve each quadratic equation by factoring and using the zero product property. 14x - 49 = x^2

Mama mia restaurant used 1 2 2 1 ? of their mozzarella cheese making pizza and the remaining 6 4 64 ounces making pasta. how many pounds of mozzarella cheese did mama mia start with?