Which expression is modeled by this set of arrows on the number line?

Can someone me with these two circle theorem questions asap?

Need match the functions with correct transformation. f(x) = -3x f(x) = |x-1|+3 f(x) = √(x+3) 1/2x² f(x) = (x+1)²-3 4|x| 1. compress by a factor of 1/2 2. stretch by a factor of 4 3. shift to the left 3 4. shift to the left 1 5. shift up 3 6. reflection

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?