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