Ahigh-speed train traveled 2200 miles in 10 hours without making any stops through the countryside of a rural area of southern france. how fast did the train travel?

Plz hurry evaluate the expression a+b where a=8 and b=19

Your friend uses c=50p to find the total cost, c, for the people, p, entering a local amusement park is the cost of admission proportional to the amount of people entering the amusement park? explain.

Two numbers have a sum of -19. one number is x. what expression represents the other number?