Error Analysis On a math test a student, Sarah , has to identify all the coefficients and constants of the expression 6+y+9m . Sarah says 9 that is a coefficient and is a constant. Identify all the coefficients and constants of the expression. What error might Sarah have made?

Is it true that product of 3 consecutive natural numbers is always divisible by 6? justifyyour answer

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?

Each cookie sells for $0.50 sam spent $90 on baking supplies and each cookie cost $0.25 to make how many cookies does sam need to sell before making a profit formula: sales> cost