Answer:
B i think let me solve
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
You do 8 by 13 which is 104 now multiply that by 3 which is 312 then divide by 2 because it triangular
If you are just simplifying it it would be 6x because it's 5x plus one more x but if you are trying to find x then I have no idea
6x3+8x2-2x+4=30-2x
10x3+x2+11x+9=21+13x
