4x + 12 = 4 · x + 4 · 3 = 4 · (x + 3) = 4(x + 3)
Answer:
=$306
Step-by-step explanation:
9/20*$680
Answer:b
10 to 20 is 10 and 80 to 60 is -20 so it’s -20/10 which is -2
Yes, the smaller the standard deviation the closer the results are clustered around the mean.
Standard deviations measure the spread of the values in a data set. The more spread out the values, the higher the standard deviation.