1.not a function 2. Not a function 3.function
Answer:

Step-by-step explanation:
let x = 0.616161 (etc.)
make a second equation because you multiply by 100:
100x = 61.616161 (etc.)
subtract from each other
100x = 61.616161
x = 0.616161
you get
99x = 61
solve for x

Answer:
the answer would be 1/225
Part A
blueberries
2/8 × 6/1(drinks) = 12/8cups
banana slice
5/8 × 6/1(drinks) = 30/8cups
30/8 + 12/8 = 42/8 cups<---- that's the answer
Part B
yogurt
4/8 × 6/1 (drinks) = 24/8 cups of yogurt <---
and 6 drinks × 1 cups of ice = 6 cups of ice <---
Basically you just have to plug in g(x) wherever you see an x in the equation f(x) since x is f(x) you just substitute it . So f(g(x))=2x+3
You then just have to solve for 0
0=2x+3
Subtract 3 from both sides
-3=2x
Divide by 2
X=-3/2