Scores on a standardized test are normally distributed with a mean of 228 and a standard deviation of 18. students who score at least 2.3 standard deviations above the mean receive a certificate.

what is the minimum score required to receive the certificate?

What is the solution to the equation 9^(x+1) =27

The length of each stair is 11 inches. what is the rise, r, for each stair? round to the nearest inch. 2 inches 7 inches 17 inches 24 inches

Venita is sewing new curtains. the table below shows the relationship between the number of stitches in a row and the length ofthe row.sewingnumber of stitches length (cm)51 131532024306what is the relationship between the number of stitches and the length? othe number of stitches istimes the length.o. the number of stitches is 3 times the length.