What is the value of this expression?
2+42 x 4 - 12
whats the answer

What is the solution to the equation in the & show work i’m very

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. how many hours after the truck's departure will the two meet?

Can you me find the missing length. i attached an image.