Answer:
c
Step-by-step explanation:
is the c 100%
Answer:
So since you have the ratio of 1 : 4
we need to find 3 : x
since 1*3 = 3. We multiply all by 3
4*3 =12.
Answer is 12
Answer:

Step-by-step explanation:





Answer:

Step-by-step explanation:
Here,
f(x) = y

or , swapping x with y

now to solve for y we get

now we put f inverse x instead of y

I am done.
30+5=5+30 with commutative property or 30+5=35