Tree pruning company a charges a one-time $100 equipment fee and charges $50 for each tree that it prunes. tree pruning company b charges a one-time $80 equipment fee and charges $60 for each tree that it prunes.

let the variable t represent the number of trees pruned and let the variable 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?

{c=50+100tc=60+80t

{c=150tc=140t

{c=100−50tc=80−60t

{c=100+50tc=80+60t