Tree pruning company A charges a one time $100 fee and $50 for each tree that they prune. Tree pruning company B charges a one time $80 fee and $60 for each tree that they prune.


Let the variable t represent the amount trees pruned and c represent the cost. For how many pruned trees will the cost be the same for both companies?


Which system of equations can be used to solve this problem?

A{c=150t

c=140t

B{c=100−50t

c=80−60t


C.{c=100+50t

c=80+60t

D{c=50+100t

c=60+80t