Which is the polynomial function of lowest degree with rational real coefficients, a leading coefficient of 3 and roots

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1

How can the correlation in the scatter plot graph below best be described? positive correlation negative correlation both positive and negative no correlation

The annual snowfall in a town has a mean of 38 inches and a standard deviation of 10 inches. last year there were 63 inches of snow. find the number of standard deviations from the mean that is, rounded to two decimal places. 0.44 standard deviations below the mean 2.50 standard deviations below the mean 0.44 standard deviations above the mean 2.50 standard deviations above the mean