Answer:

2/5
Step-by-step explanation:
to multiply fractions, multiply the numerators together and the denominators together:




Answer:
True
Step-by-step explanation:
So we know that:

And we are asked to verify whether f(2)=0 is true or false.
To determine the answer, substitute 2 for n in the function and solve. So:

Square and multiply:

Subtract:

So, the statement is indeed true.
And we're done!
y = -19
I started by adding 18 to both sides(inverse operation) then dividing by -2 to isolate the variable. What you do to one side must be done to the other