Answer: -3x-1
Step-by-step explanation: 2x-4-5x+3 collect the terms
-3x-4+3
answer -3x-1
1. v=d/t=7.5/1.5=5 km/h
2. v=d/t=(v1*t1+v2*t2+v3*t3)/(v1+v2+v3)=(15*10+20*10+25*5)/(10+10+5)=
=(150+200+125)/25=475/25=19 m/s
I have no idea what that thing is talking about I agree with you
Answer: (2h)(b)(b)
Step-by-step explanation: