Answer:
x+2x+x+10
Step-by-step explanation:
Company A= x
Company B =2x
Company C =x+10
I think its 6 cm for the 3rd side
200
2 1/5 + 6 4/5
= 2/5 + 24/5
= 26/5
= <u>5</u><u>.</u><u>2</u>