I NEED THIS DONE SOON. I DID MOST OF IT. Figures and cross section

Using a cereal box, find the surface area and the box's volume. The dimensions are 8 inches wide by 12 ⅛ inches tall by one ¾ inch deep. Parallel to the base, it would be a rectangle 8 inches x 1 ¾ inches.

Surface area = 2x(12 ⅛ x8) + 2 x (8 x 1 ¾) =2 x ( 12 ⅛ x 1 3/4 ) = 194 + 28 + 42 7/16 = 264 7/16 square inches.

Surface area if scaled up by a factor of 10: 10^2 = 100. 26,443 ¾ square inches.

Volume = 8 x 12 ⅛ x 1 ¾ = 169 ¾ cubic inches.

Volume scales down by 1/10
⅓^10 =3 ⅓
⅓ = 100/3 divided by 3 = 3/100

Please give measurements for Length = Width = Height =
of the cereal box. Describe the cross section of the box

starting with:    

5 + x - 12 = 2x - 7   

5 + x - 12 - x = 2x - 7 - x (subtract x from both sides)   

5 - 12 = x - 7 (combine and cancel x's from both sides)   

5 - 12 + 7 = x - 7 + 7 (add 7 to both sides)   

0 = x (add numbers together on both sides)       

so in order for the equation to be true, x must be 0.   

trying x = -0.5   

5 + x - 12 = 2x - 7 (original equation)   

5 + -0.5 - 12 = 2(-0.5) - 7 (plug in value of x)   

5 + -0.5 - 12 = -1 - 7 (did multiplication)   

-7.5 = -8 (did addition on both sides)       

since -7.5 is obviously not equal to -8, the value of -0.5 for x is wrong.   

trying x = 0   

5 + x - 12 = 2x - 7 (original equation)   

5 + 0 - 12 = 2(0) - 7 (plug in value of x)   

5 + 0 - 12 = 0 - 7 (did multiplication)   

-7 = -7 (did addition on both sides)       

since -7 equals -7, that demonstrates that the value of 0 for x is correct.   

trying x = 1   

5 + x - 12 = 2x - 7 (original equation)   

5 + 1 - 12 = 2(1) - 7 (plug in value of x)   

5 + 1 - 12 = 2 - 7 (did multiplication)   

-6 = -5 (did addition on both sides)       

since -6 is obviously not equal to -5, the value of 1 for x is wrong.

2425

step-by-step explanation:

c

step-by-step explanation:

b. hannah is playing with her cousin at