What number multiplied by the expression 5x 10^3 is equivalent to the expression 5 x 10^6

What is the common difference in the following arithmetic sequence? 7,3,-1,-5

The transitive property of equality states that: o if a = b, then bra o if a = b, then ac = bc o if a = b and b= c, then a = if a = b and c= c, then a + b = b + c

Abox of chocolates costs $7. which equation relates the number of boxes sold (x) and total cost of the boxes sold (y)?