Which of these is the equation of the new function? ​

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?

Given that abcd is a rhombus, what is the value of x?

[tex]5 \times1 \frac{12}{13} [/tex] me