Picking digits from the list 1, 2, 3, 4, 5, 6, 7, 8, 9 just once, we build two four-digit natural numbers in such a way that their sum is as small as possible. what is the value of this smallest possible sum?

first one to answer gets 50 points and brainliest

Question 3 (essay worth 10 points) (03.06 mc) part a: max rented a motorbike at $465 for 5 days. if he rents the same motorbike for a week, he has to pay a total rent of $625. write an equation in the standard form to represent the total rent (y) that max has to pay for renting the motorbike for x days. (4 points) part b: write the equation obtained in part a using function notation. (2 points) part c: describe the steps to graph the equation obtained above on the coordinate axes. mention the labels on the axes and the intervals. (4 points)