Whats the solution to the system? the lines cross at (-1, 3)

Acircle has a radius of 12.6cm what is the exact length of an arc formed by a central angle measuring 120

Abby is collecting rainfall data. she finds that one value of the data set is a high-value outlier. which statement must be true? abby will use a different formula for calculating the standard deviation. the outlier will increase the standard deviation of the data set. the spread of the graph of the data will not change. abby will not use the mean when calculating the standard deviation.

What is y-5=3(x+1) in slope intercept form