Answer:
if you go on https://www.geogebra.org/ it will graph it for you
Step-by-step explanation:
77-27= 50 so when you add both it add up to 77 ,
50 is the answer
Your proportion should look something like this

After cross multiplication, you should end up with this equation

After dividing 4 on both sides, you should get that x=9
Answer:C
Step-by-step explanation:
Answer:
2/3
Step-by-step explanation:
1/3 is the same as 3/9 (multiply 3 to both numerator and denominator) 3/9+3/9 is 6/9. 6/9 can be simplified by dividing 3 to both sides to get 2/3.