Step-by-step explanation:
what the f♤ck are those. any teachers give u it tell them to go do it
Answer:
2a2b-6ab2+9ab+5 is right answer
I think you need to make the 6 positive and then add it to 13 which would give you a=19
Concentric as they have same center
The car is going at a speed of 50 mph and the motorcycle is going at a speed of 40 mph.
40*2=80
80-30=50
50-40=10
10*2 hours= 20
I hope I helped!
