Answer: 
Step-by-step explanation:
Given
Truck A speed is 
Truck B speed is 
Truck A leaves 2 hours before truck B
Distance traveled in the 2 hour

Suppose Truck B will catch truck A after t hours


Overtake time is 
Answer:60
Step-by-step explanation:
Multiple length time width to get your area
Answer:
3x^2+1.5x-9
Step-by-step explanation:
(f+g) (x)
=f(x)+g(x)
=x/2-3+3x^2+x-6
=3x^2+1.5x-9