Question

WILL DO ANYTHING PLEASE HELP ONLY NEED FEW MORE!!

Erin covered a box with contact paper. The dimensions of the box are shown in the figure below:

A rectangular prism is shown. The length of the rectangular prism is labeled as 11 inches, the height is labeled as 9 inches and the width is labeled as 8 inches.

The contact paper costs 8¢ per square inch. She will only pay for the contact paper used to cover the box, even if there is waste or extra. How much money did Erin spend on the contact paper?
$20.72
$41.44
$48.12
$73.14

Answer 1

@iGreen can you help on some more including this one?

Answer 2

please help I only have a couple more :P

Answer 3

I think we want the surface area.

Answer 4

Ok here let me show you the picture

Answer 5

\(A=2(wl+hl+hw)\)

\(A=2((8)(11)+(9)(11)+(9)(8))\)

Simplify

Answer 6

I dont get it? I got 213 but pretty sure that it is wrong

Answer 7

@iGreen is that wrong? Please tell me how to do it like multiply or stuff

Answer 8

hey @KennyVanGemert it's 347 for the first part

Answer 9

I need to know not only how to get it, but how to do it

Answer 10

Multiply 8 * 11, 9 * 11, and 9 * 8, then add them up.

Answer 11

ok lemme see

Answer 12

then get a number that equally goes into 347, I use half of PEMAS

Answer 13

259?

Answer 14

*d

Answer 15

@iGreen I did 8*11 got 88 then 9*11 got 99 then 9*8 got 72 then added them together and got 259

Answer 16

@sapphire_waterfury idk what it is though ;1;

Answer 17

nope it's 347 you forgot to multiply by two

Answer 18

ok but the answers arent anywhere close to that :?

Answer 19

ok look at how I did it

Answer 20

ok

Answer 21

I dont get it ;(

Answer 22

@iGreen did I do it correct I got 259 but then the other guy said to *2

Answer 23

also use a calculator to double check your work (I'm a girl)