If the variance is 81 grams, what is the standard deviation four times?

Find the balance at the end of 4 years if 1000 is deposited at the rate of

The clayton family’s pool has vertices at the coordinates (0, 2), (0, 5), (2, 5), (2, 6), (5, 6), (5, 1), (2, 1), and (2, 2). if each grid square has an area of 9 square feet, what is the area of the pool?

Ab based on the given diagram, if m_1 = 60° then m 2 = 30 60 90 180