If IQ scores are normally distributed with a mean of 100 and a standard deviation of 15, would Jane with an IQ score of 125 be considered smart, normal, or unintelligent?

Steve wants to develop a way to find the total cost of any item including sales tax. the sales tax in his city is 6%. his friend jenna writes the expression x + 6x where x is the cost of the item. explain whether her expression is correct based on the situation.

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?

Select the correct answer from each drop-down menu. consider the following polynomials equations. 3x^2(x-1) and -3x^3+ 4x^2-2x+1 perform each operation and determine if the result is a polynomial. is the result of a + b a polynomial? yes or no is the result of a - b a polynomial? yes or no is the result of a · b a polynomial? yes or no