What are the answers to these? list them by order from top to bottom , also the top question is that they want the design that will use less cardboard to make, which box is it? ❤️❤️❤️

Step-by-step explanation:

When there are many instances of the same calculation, it is convenient to let a spreadsheet or graphing calculator do them. The formula can be entered once and used many times. See the attachment for an example.

1. The surface area of a box with dimensions L, W, D can be written as ...

  S = 2(LW +LD +WD) = 2(LW +D(L+W))

Then the surface area of the left (original) box is ...

  S = 2(2·12 + 8(2+12)) = 2(24 +112) = 272 . . . . square inches

The surface area of the right (proposed) box is ...

  S = 2(4·3 +14(4+3)) = 2(12 +98) = 220 . . . . square inches

The volume of the original box, at 2·12·8 = 192 in³ is greater than the volume of the proposed box (3·4·14 = 168 in³), so the customer gets less cereal with the redesigned box. I don't dig it.

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2. The previous question shows the formula and an example of the calculation. The attachment shows the numbers for this question.

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3. The attachment shows the numbers for this question.

a) 15/7

step-by-step explanation:

y=x+2 hope this jdjxhdnzbdjdo