They have collected [tex]135+89=224[/tex] cans until now. To equal 325, they need [tex]325-224=101[/tex] cans more.
A.
Let C be the number needed to equate atleast 325.
[tex]135+89+C\geq 325[/tex]
B.
If we solve the inequality in part A, we can find minimum number of C to meet the goal of 325 cans.
[tex]135+89+C\geq 325\\224+C\geq325\\C\geq325-224\\C\geq101[/tex]
So they need minimum 101 to complete the target and more than that to surpass.
ANSWER: 101 cans are needed to meet the goal and more than that to surpass the goal.