Tatiana had $350. she spent $180 on herself, and the rest on presents for her family. write an equation to express how much tatiana spent on her family.

Karianne and lucius are analyzing a linear function on a graph. karianne says that unit rate is equal to rate of change, but that slope is calculated differently. lucius says that unit rate, rate of change, and slope are calculated the same way. who is correct? explain your answer.

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?

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