Solve for x: x/3= 7

x= 21
x= 12
x= 7/3
x= 11
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Match each statement with its corresponding value for the system below: y = -2(3)x and y = 9x - 2 1. the number of points of intersection. -2 2. the x-coordinate of the solution. 1 3. the y-coordinate of the solution. 0

The table shows the age and finish time of ten runners in a half marathon. identify the outlier in this data set. drag into the table the ordered pair of the outlier and a reason why that point is an outlier.

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.