9. the regular price of an item at a store is p
dollars. the item is on sale for 20% off the regular
price. some of the expressions shown below
represent the sale price, in dollars, of the item.
expression a: 0.2p
expression b: 0.8p
expression c: 1 -0.2p
expression d: p -0.2p
which two expressions each represent the sal
price of the item?
a expression a and expression e
b expression b and expression c
c expression b and expression d
d expression c and expression d

answer with step-by-step explanation:

a. ∠j is supplementary to ∠k - true:

(opposite angles of a trapezoid are supplementary which means that they add up to 180 degrees)

b. kl is parallel to jm - true:

(opposite sides are parallel to each other in a trapezoid)

c. jk is perpendicular to kl - false:

(clearly, jk does not make a right angle with kl)

d. jk is parallel to lm - false:

(jk and lm are two lines opposite in direction to each other so they cannot be parallel)

e. ∠j is congruent to ∠m - true:

(the angles on each side of the base are congruent)

f. ∠j is congruent to ∠k - false:

(the angles on the same side but opposite side of the base are not congruent)

which expression represents the approximate length of bc?

step-by-step explanation:

step-by-step explanation: