Find the number that is exactly halfway between 3/10 and 4/5

In order to answer you ned to find a common denominator.

Since 5 is a multiple that goes into 10 that can be your common denominator

This means its 3/10 and 8/10

The number exactly halfway would be 5.5/10

If you need a whole number as your numerator it could also be 11/20

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