The Phoenician alphabet was different from any previous forms of symbol writing because A: it was determined to be the only acceptable form of communication by the pharaoh
B: it was easier to understand than other developed forms of communication
C:it used a system that each symbol represented a spoken sound
D:it was easy to write on the newly developed paper product

really and truely i dont know sorry

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

to force terrorists groups to stop attacking western targets using massive military force.

i guess so you did not explain the answer clearly so i can't