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What term makes it inconsistent y=2x - 4 ?

Danielle earns a 7.25% commission on everything she sells at the electronics store where she works. she also earns a base salary of $750 per week. what were her sales last week if her total earnings for the week were $1,076.25?

What is the equation of a line passing through (-6,5) and having a slope of 1/3