First set up the equation:

Then substitute in known values:

and solve for C

Answer:
c
Step-by-step explanation:
Answer:
The surface area is A≈96ft²
Your equation would be t +25=57 because we don’t know how many necklaces Stacy made so we use T to plug it in and solve
for the first one set 3y+y=180 and y+x=180
the second one set w+y=180, 42+x=180, y+20=180, and 87+v