Is my answer correct?? // tell me if my answer is wrong please and thank you!!

Acertain standardized? test's math scores have a? bell-shaped distribution with a mean of 520 and a standard deviation of 105. complete parts? (a) through? (c)

Which sentence uses an objective tone? we will plant the best garden of any school in the area. the new campus garden will surely be envied by other schools. a garden would provide numerous benefits to the students. you will probably agree that gardens have many benefits.

Which value of m will create a system of parallel lines with no solution? y= mx - 6 8x - 4y = 12