By 2500 BCE, what did the Harappan civilization develop that would not be seen again for 3,000 years?

your mom

now im just trying to get this to 20 characters hope it works hey it works hope it okay bye

the us constitution is a living document, meaning that it can be changed over time as the country changes.

c)an idealized view of nature. hope this

the perimeter of a triangle is 69 cm. side a is 5 cm shorter than side b. side c is twice as long as side a. find the length of each side. i need to know how to do it in 2 equations.  

equations:

a = b-5

c = 2a

a + b + c = 69