A rectangular prism with a volume of 3 cubic units is filled with with cubes with side lengths of 1/4 unit

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

the answer is c. ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

there should be an link icon on the bottom of the text box you get. it looks like a paperclip!