Kevin and Randy Muise have a jar containing 69 coins, all of which are either quarters or nickels. The total value of the coins in the jar is $5.90. How many of each type of coin do they have?

a)(x-2)^2+(y-1)^2=9

step-by-step explanation:

(picture explains)

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