35 points for these questions,, answer any of them

1a) -561

1b)29

1c)-66

3)-18ly-18x

5a)Let's solve for r.

z+z=2r(2.718282)

Step 1: Flip the equation.

5.436564r=2z

Step 2: Divide both sides by 5.436564.

5.436564r

5.436564

=

2z

5.436564

r=0.367879z

5b)

Step-by-step Let's solve for i.

z−z=21imz

Step 1: Flip the equation.

21imz=0

Step 2: Divide both sides by 21mz.

21imz

21mz

=

0

21mz

i=0

Explanation: Please I hope I helped. :)

D). (-4, 17)

Step-by-step explanation:

Plug in -4 for x.

Solve.

We already know that the x-coordinate is -4. (-4, y)

f(x) stands for y, so y=17.

(-4, 17)

I hope this helps!