Please answer my question I will mark BRAINLIEST
With explanation please of all

See below ↓

Step-by-step explanation:

11)

12)

13)

There is a rule on which states you can only answer 3 questions maximum per post.

So I can only help with you this much.

Hope this helped~

the volume is the product of the area of the base, 3x(3x+4), and the height, 3x-1

step-by-step explanation:

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°