The material used to make a storage box costs $1.25 per square foot. The boxes have the same volume. How much does a company save by choosing to make 50 of Box 2 instead of 50 of Box 1?

Surface area of Box 1 to the nearest hundredth: ft2
Surface area of Box 2 to the nearest hundredth: ft2

Cost of 50 of Box 1 the nearest cent: $
Cost of 50 of Box 2 the nearest cent: $

Using the rounded values above, the company saves $ by using Box 2.

i not know

step-by-step explanation:

15 batches are the most you can make

step-by-step explanation:

tip $2.90

total $17.40

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places