Any boys want a girl friend

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. what distance from city a is the point where the truck and the car will meet?

Joe has some money in his bank account he deposits 45$ write an expression that represents the amount of money in joe's account

Find the maximum value of p= 4x + 5y subject to the following constraints :