Abdoulaye is saving up to buy a new phone. He already has $70 and can save an additional $10 per week using money from his after school job. How much total money would Abdoulaye have after 9 weeks of saving? Also, write an expression that represents the amount of money Abdoulaye would have saved in w weeks.

After 9 weeks of saving, Abdoulaye would have:

$70 + ($10/week x 9 weeks) = $70 + $90 = $160

The expression that represents the amount of money Abdoulaye would have saved in w weeks is:

$70 + ($10/week x w weeks)