Can someone help me with this question? Will give brainliest :) (valid answers only or you’ll be reported)

Write an expression that has three terms and simplifies to 4x - 7. identify the coefficient(s) and constant(s) in your expression

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?

Indicate the formula for the following conditions: p^c(n, r)=