Here's an easy one:
which of the following would be a line of reflection that would map abcd onto itself?

(image attached, 20 pts, will mark brainliest! )

a. y = 2
b. 3x + y = 1
c. 3x + y = −1
d. −3x + 3y = 9

-2x-4

step-by-step explanation:

all three statements are true

step-by-step explanation:

a shipping fee of 5% is charged online with every item purchased online

first let's just take each option and calculate them based on this, to see if the answers matched

keith buys a 40 dollar book

40 x 0.05 = 2

therefore there will be a two dollar fee on keith's book

40 + 2 =42

the first statement is true

a chair costs $80

80 x 0.05 = 4

80 + 4 = 84

the second statement is true

george buys a 20 dollar calculator

20 x 0.05 = 1

20 + 1 = 21

the third statements are true

all three statements are true