Which expression is equivalent to -2(3a + 6b) + (4a - 2b)?
a) -2(a + 7b)
b) -2(a - 7b)
c) 2(a + 7b)
d) 2(a - 7b)

step-by-step explanation:

i am not sure sorry : c

lol we need to see what the question is asking about

step-by-step explanation:

i think the answer is true

step-by-step explanation:

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