Ms. Ramirez earns 250 each week plus 7% of any amount she sells. she earned 845 last week. How much did she sell ?
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If the equation of a line is written in the 
form, 
is the y-intercept.
The y-intercept is -1. The line crosses the y-axis at the point (0,-1).
The y-intercept is -1. The line crosses the y-axis at the point (0,-1).