2y+ 3 = 15
I have to solve for y but it is complicated

y=6

Step-by-step explanation:

2y = 15 - 3

2y = 12

y = 6

I hope this helps

other answer is correct. i had used the radius of the radius somehow. a website:

80° is the measure of gh

step-by-step explanation:

circle f is congruent to circle j

we have two circle with center f and j.

both circles are congruent. the radius of the circle would be equal.

see the attachment for the circle.

we are given ∠efd ≅ ∠gjh

therefore, arc (ed) = arc (gh)     (∴ circle f is congruent to circle j)

but ∠dfe=80°=arc (ed)

therefore, arc (gh) = 80°

thus, 80° is the measure of gh