9. La mesure des côtés est représentée par une expression algébrique. Six représente 8, quel est le périmètre de ce triangle?
4x - 7
2x + 4

x/3-10=8

x/3=18

x=48

my guess would be b and d, but i didn’t actually get out the pen and paper. lol

answer:  

step-by-step explanation:

odd numbers are only divisible by 1 and itself.

even numbers are divisible by more than 1 and itself.

for example 6 is even because it is divisible by more than 1 and its self. 1 x 6= 6 ; 2 x 3= 6

and 7 is odd because only 7 x 1 equals seveb