Given the following data from a sample find the sample standard deviation.5, 15, 19, 15, 2, 8Round your answer to two decimal places.

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

In each bouquet of flowers, there are 2 roses and 3 white carnations. complete the table to find how many roses and carnations there are in 2 bouquets of flowers.

Daniel expanded the expression as shown below -2(-8x-4y+3/4)=-10x-8y-11/4 what errors did he make? check all that apply