Total money needed to buy a new bicycle = $180 .
Money she has already = $30.
Saving of each month = $ 25.
Let us make a table for total earning for different number of months.
________________________________________
Number of months Total saving
_________________________________________
0 $30.
1 30+25 = $55
2 30+2*25 = 30+50= $80
3 30+ 3*25 = 30+75 = $105
__________________________________________
Let us plot points on the graph using those values in the table.
We would take number of months by x-axis (horizontal axis) and Total saving by y-axis( vertical axis).
From the graph, we can clearly see that for 6 months the total amount would be $180.
Therefore, Dara need 6 weeks to save the $180 for new bicycle.
