Why might it be beneficial to have both an inverse function and the original function when attempting to model a situation? You may use a specific function type or scenario in your answer.

its b

Step-by-step explanation:

Did it before

people grow faster than other people.

step-by-step explanation:

should you really be posting this isn't math boi.

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -