After collecting data and calculating its mean, Sarah feels it it is necessary to adjust her data. The mean is 32 and the variance is 61. Each value of the data set is multiplied by 3.

a. Write down the new mean.

b. Find the value of the new standard deviation.

Amira is painting a rectangular banner 2 1/4 yards wide. the banner will have a blue background. amira has enough paint to cover 1 1/2 square yards of the wall. the school colors are blue and yellow, so amira wants to add yellow rectangles on the left and right sides of the blue rectangle. the yellow rectangles will each be 3/4 yards wide and the same height as the blue rectangle. what will be the total area of the two yellow rectangles?