Betty's Department Store is having a clearance sale everything in the store is 1/3 off the items Xander bought have a pre-sale total price of y dollars before sales tax part A write two equivalent expressions that represent the total cost of the item at sale price before tax in terms of Y and explain how the two expressions relate to one another part b which expression is more useful why

step-by-step explanation: yes

investment b is an ordinary annuity with $3,909.64 in the account after one year.

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