Megan expects to save an average of 5 dollars per week from her babysitting earnings. The relationship between time and the amount of money she saves is shown on the graph. Which other ordered pairs would fall on this line? Select all that apply.

Saving $5 per week means the amount saved is 5 times the number of weeks, so the line follows y = 5x. For (0.5, 2.5), 5 × 0.5 = 2.5, and (0, 0) also fits because 5 × 0 = 0. The other pairs do not fit: 3 weeks gives $15, not $18, and 4.5 weeks gives $22.50, not $30.

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