Answer:
no ,yes yes I think.
Step-by-step explanation:
If three points were A, B and C are collinear points and B is between A and C, then AB+BC=AC
Answer:
mistake in the second line
Step-by-step explanation:
3(x-6)+(4x+12)-6x
3x-18+4x+12-6x
x-6
Answer:
3 left
Step-by-step explanation:
Answer:
$0.80
Step-by-step explanation:
percent times the original number equals the part
(%)(start or total cost)= (part of the total cost). you need to know the total cost, so you would fill in the part and the percent. 0.9x=0.72. you use x because you don't know what the total cost is. then you divide both sides by 0.9 to get x by itself and you get that x = 0.8, meaning that the present costs $0.80.
