can i please get help please as soon as possible

Question

Question 1: Evaluate 5(A + 2B) if possible.

A.)

B.)

C.)

D.)

Question 2: Evaluate DC if possible.

A.)

B.)

C.)

D.) not possible

Question 3: Identify the graph for the point C(−2, −1, 2) in three-dimensional space.

A.)

B.)

C.)

D.)

Please just only give solution and explanation.

Answer 1

#1. By substituting for 5(A + 2B) where "a"=2 and "b"=-9; the answer is -80; breaks the answer to a or d.

When using 8 and 5; the answer is 90.

-4 6 40

a is the answer. Substitute.

As for #3: (-2, -1, 2) are in the 1st quad (looking 2 dim). x is backwards; y is L-r; z is up.