The scatter plot for a set of data points is shown. choose the best estimate for r, the correlation coefficient

a) 0.2
b)0.5
c)0.7
d)0.9

Find the solution set of this inequality. enter your answer in interval notation using grouping symbols. |8x-4| ≤ 12

Due to financial difficulties the owner of 4 skateboard stores is going to close 2 of his stores. based on the money earned at each store, which two stores should remain open?

The area of a circle is equal to 1 dm². find the radius of the circle.