The mean of the values in a data set is a. If each of the values in the data set
were multiplied by 7, what would be the mean of the resulting data?
А. 7а
в. 8а
C. a
D. 6a

Find the equation of the trend line (line of best fit). show your work i'm using the points (34,76) (42,91)

When a rectangle is dilated, how do the perimeter and area of the rectangle change?

Michelle and julie work at a catering company. they need to bake 264 cookies for a birthday party that starts in a little over an hour and a half. each tube of cookie dough claims to make 36 cookies, but michelle eats about 1/5 of every tube and julie makes cookies that are 1.5 times as large as the recommended cookie size. it takes about 8 minutes to bake a container of cookies, but since julie's cookies are larger, they take 12 minutes to bake. a. how many tubes should each girl plan to bake? how long does each girl use the oven? b. explain your solution process what did you make? c. what assumptions did you make?