How do u write 4,000,000+3,000+50+2 in standard form

How can you construct perpendicular lines and prove theorems about perpendicular lines

How many grams the dog will eat in 3 days?

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.