What is the inverse of the fraction f(x)= 1/9x+2

f(x)^-1 = 9x-18

Step-by-step explanation:

f(x) = 1/9x+2

-2 from both sides

f(x)-2 = 1/9x

*2 to both sides

9(f(x)-2) = x

replace 'f(x)' with 'x'

9(x-2) = f(x^-1)

simplify and reverse sides

Problem 4, missing number is 626, while the missing number for all the other problems is 426.

Step-by-step explanation:

Problem 1. 526= _ + 100 (Ans = 526-100=426)

Problem 2. 526-_=100 (Ans = 526-100=426)

Problem 3. 526-100=_ (Ans = 526-100=426)

Problem 4. 526+100=_ (Ans = 526+100=626)