Answer:
brainly is the best app just sometimes qustions take a long time to get answered
Step-by-step explanation:
2x plus 3 hope this helps. Mark as brainlist
t=v/d
id think that there are two steps
v=d/t
divide D on both sides
v/d=d/t/d
v/d=t
Company a= 15x+10y+25z+75
Company b=20x+10y+30z+60