10 POINTS WILL GIVE BRAINLIEST WHEN IT GETS GRADED

Does the math on these look okay? I'm not so sure about it. (2 questions)

If it's not, please show your work-
(I forgot to upload the other one)

The answer to your question is We got the same. I think your work is correct.

Step-by-step explanation:

Data

height = 4x - 5

length = 3x + 1

width = 2x - 3

Formula

Volume of a rectangular prism = height x length x width

-Substitution

Volume = (4x - 5)(3x + 1) (2x - 3)

-Simplification

Volume = (12x² + 4x - 15x - 5)(2x - 3)

Volume = (12x² - 11x - 5)(2x - 3)

Volume = 24x³ - 22x² - 10x - 36x² + 33x + 15

Volume = 24x³ - 58x² + 23x + 15                    

2.- Number of computers    N(t) = 5t + 106

   Price of computers          P(t) = 13t² + 25t + 600

Initial year = 2005

Final year = 2010

Number of years = 2010 - 2005

                            = 5 years

a) Calculate the numbers of computers

       N(5) = 5(5) + 106

               = 25 + 106

               = 131 computers

b) Calculate the price

       P(5) = 13(5)² - 25(5) + 600

               = 13(25) - 125 + 600

               = 325 - 125 + 600

               = $800

c) Calculate the revenue

  Revenue = 131 x $800

                  = $104880

Yes, both are correct

Step-by-step explanation:

The total, 7.49, should be the top bar, and the variable, t, should be one of the partial bars. The prices for a certain number of oranges is also incorrect. $0.75 should be multiplied by 4 and $0.50 multiplied by 8.