Answer:
C. 2-√3
Step-by-step explanation:
Answer:
Cups of chopped celery in original recipe = 
Step-by-step explanation:
Given that:
Trevor is making 2/3 of a recipe
Number of cups of chopped celery used = 1/2 cup
The following equation can be used to find the original number of cups of chopped celery used in recipe.

Multiplying both sides by 3/2

Hence,
Cups of chopped celery in original recipe = 
Answer:
y=3
Step-by-step explanation:
To solve this 2 step equation, we need to get y alone. Lets write out the equation
-2y+16=10
Subtract 16 from both sides
-2y-16+16=10-16
Subtract
-2y=-6
divide both sides by -2
-2y/-2=-6/-2
divide
y=3
Your going to want to first distribute the negative out to the second equation
65x+50y-16x+21y
49x+71y